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Home My WebLink AboutDrainage ReportStorm Water Drainage Technical Report 510 SUBDIVISION, CARMEL, INDIANA Job #: 23-021 Prepared for: TOM LAZZARA Prepared by: Date: 02/24/23 REV: 11/27/23 REV: 04/05/24 REV: 05/18/24 Table of Contents Cover Table of Contents Stormwater Drainage Technical Report Introduction & Exiting Conditions and Analysis Post Developed Analysis Stormwater Quality Post Construction Conclusion Appendix ‘A’ Soils Report FIRM (Flood Insurance Rate Map) Appendix ‘B’ EXISTING BASIN MAP EXISTING “C” & “CN” CALCULATIONS EXISTING HYDROCAD MODEL AND RESULTS Appendix ‘C’ PROPOSED BASIN MAP PROPOSED “C” & “CN” CALCULATIONS PROPOSED HYDROCAD MODEL AND RESULTS HYDROFLOW PIPE CALCULATIONS EMERGENCY WEIR CLCULATION Stormwater Drainage Technical Report Introduction & Existing Condition Analysis This report summarizes the pre and post-developed drainage analysis for the vacant tract (Parcel No. 16- 09-25-08-01-010.000, 0.52 acres by deed) south and west of 510 1st Avenue NW in the City of Carmel, Clay Township, Hamilton County, Indiana. Owned by Thomas A. Lazzara. The project will be two single family residences. The project involves future improvements of 2 residential structures, underground detention and driveway. The purpose of this report is to present a drainage analysis of the site in its existing and proposed conditions, provide design information concerning the proposed infrastructure, and to determine the necessity of any potential drainage options. According to the FIRM, Panel Number 18057C0207G, dated November 19, 20 14, the subject property is not within in a Special Flood Hazard Area (Zone X). See map in Appendix “A”. The 14-Digit Watershed Hydrologic Unit Code for the site 05120201090030 according to the Indiana Map GIS web-site This site consists of Soil Types Brookston silty clay loam (BR) –Type “C/D” soil with a permeability rate of 0.6-2.0in/hr range per the Hamilton county Soils Survey book. See Soils Report (Appendix A). Drainage analysis was performed using the rational method (for areas 5 acres and less) with a 21 minute duration to fully capture the runoff for the longest Tc (21.0 min). The UNDEVELOPED runoff results of which are: 2yr = 0.33 CFS 10yr = 0.44 CFS 100yr = 0.65 CFS Resulting, weighted “C” and “CN” are 0.25 and 58 respectively. See calculation sheets in Appendix B. Post Developed Analysis Developed into a single family residences with fully managed lawn and landscape, the disturbed portion of the property will yield the following rates of runoff (un-controlled) based on the same time duration as the existing conditions: 2yr = 0.91 CFS 10yr = 1.20 CFS 100yr = 1.78 CFS Detention Storage Required detention will be handled via an underground detention system consisting of a stone basin of washed No 8 stone, fabric wrapped, with five 24”dia. chambers 93 feet in length. The chambers will be connected and with outlet into the 1st new structure proposed for this development. Allowable release rates for the 10 & 100yr events area 0.06 CFS and 0.17 CFS respectively. Model calculations reveal that the underground basin as designed will contain the entire 100yr event for the entire property and the release rate would be controlled property by an orifice plate with a 2.0” diameter opening. This will reduce the rate of flow to 0.07 CFS in the 100yr event with a maximum flood elevation within the underground basin of 814.30, 10yr elevation = 813.72 the detention basin will be constructed under the proposed drive for the two proposed lots with a stone shoulder on each side. To summarize this project: Total site area: 0.567 acres Disturbed area: 0.567 acres Allowable release rates: 10yr (0.10 cfs/ac) = 0.056 cfs (Based on disturbed area) 100yr (0.30 cfs/ac) = 0.170 cfs Post Dev (uncontrolled) runoff: 10yr = 1.20 cfs 100yr = 1.78 cfs Post Dev (Controlled 2.4” orifice) runoff: 10yr = 0.05 cfs 100yr = 0.07 cfs Required detention volume: 1335.84 CF Provided detention volume: 1490 CF System drain down time to achieve 90% available volume is approximately 7 hours. Detention basin is oversized by 11% There are NO State or Federal permits required for this project. Resulting, weighted “C” and “CN” are 0.35 and 85 respectively. See calculation sheets in Appendix C. The “remainder” of the property left undeveloped is likely to revert back to a natural meadow / prairie land condition as the owner intends only to maintain the disturbed areas and drainage system. Bypassed areas from the east contributing offsite lots and the southern contributing offsite areas are directed into a swale, then direct into the proposed storm sewer system, routed separately from the above described underground basin. The north adjoining property (Lot 3) flows entirely westward into localized low area and flow path to the northwest and will not affect the proposed system. The bypass swale, during the 100yr event is expected to overflow onto the north property mentioned previously. An overflow weir of earth and riprap is proposed at the north end of the swale and the particulars for the weir are shown in detail on sheet 3 of the plan set. Stormwater Quality Post Construction Standard Erosion & sediment control features will be required during all phases of construction of this project and only around the immediate are of disturbance. Commonly required measures shall be employed by the contractor during and maintained by the home owner after construction. Water quality from this type and size of project will come from sheet flow runoff across the managed la wn and landscape the home owner installs. Required WQv for this project is as follows: P*RV*A 12 Where A=0.567 P=1 Rv = 0.05+0.009(I) , I = %impervious for the project I = 42.97% RV = 0.05+0.009(42.97) = 0.392 WQV = (1)*(0.392)*(0.567) = 0.018 ac-ft ~806.82 CF (required) 12 Infiltration along the western shoulder of the proposed drive will be our designated WQ technique. A 2‘ stone shoulder (fabric wrapped and connected to the underground stone basin) will collect overl and flows from the two lots, providing treatment prior to entry of the underground basin. Additionally, a curb inlet structure with a Snout over the outlet pipe will be utilized to capture large particulates and trash. Conclusion Given the results of this analysis I believe this project should be exempt from the requirements of the drainage ordinance and particular matters of the City of Carmel Storm Water Technical Manual and we respectful request the approval of this project with all standard site / plot plan required elements as included herein. APPENDIX A Soils Report FIRM (Flood Insurance Rate Map) United States Department of Agriculture A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Hamilton County, Indiana 510 SUBDIVISION Natural Resources Conservation Service April 7, 2024 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nrcs.usda.gov/wps/ portal/nrcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nrcs) or your NRCS State Soil Scientist (http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/contactus/? cid=nrcs142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface....................................................................................................................2 How Soil Surveys Are Made..................................................................................5 Soil Map..................................................................................................................8 Soil Map................................................................................................................9 Legend................................................................................................................10 Map Unit Legend................................................................................................11 Map Unit Descriptions.........................................................................................11 Hamilton County, Indiana................................................................................13 YbvA—Brookston silty clay loam-Urban land complex, 0 to 2 percent slopes....................................................................................................13 Soil Information for All Uses...............................................................................15 Soil Properties and Qualities..............................................................................15 Soil Qualities and Features.............................................................................15 Hydrologic Soil Group.................................................................................15 References............................................................................................................20 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil-vegetation-landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil 5 scientists classified and named the soils in the survey area, they compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil-landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil-landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field-observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and Custom Soil Resource Report 6 identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. Custom Soil Resource Report 7 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 8 9 Custom Soil Resource Report Soil Map 44261384426146442615444261624426170442617844261864426138442614644261544426162442617044261784426186574289 574297 574305 574313 574321 574329 574337 574345 574353 574361 574289 574297 574305 574313 574321 574329 574337 574345 574353 574361 39° 58' 57'' N 86° 7' 47'' W39° 58' 57'' N86° 7' 44'' W39° 58' 55'' N 86° 7' 47'' W39° 58' 55'' N 86° 7' 44'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 16N WGS84 0 15 30 60 90 Feet 0 5 10 20 30 Meters Map Scale: 1:352 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:15,800. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Hamilton County, Indiana Survey Area Data: Version 24, Sep 1, 2023 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jun 15, 2022—Jun 21, 2022 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report 10 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI YbvA Brookston silty clay loam-Urban land complex, 0 to 2 percent slopes 0.6 100.0% Totals for Area of Interest 0.6 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, Custom Soil Resource Report 11 onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha-Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. Custom Soil Resource Report 12 Hamilton County, Indiana YbvA—Brookston silty clay loam-Urban land complex, 0 to 2 percent slopes Map Unit Setting National map unit symbol: 2w57n Elevation: 600 to 1,260 feet Mean annual precipitation: 37 to 46 inches Mean annual air temperature: 48 to 55 degrees F Frost-free period: 145 to 180 days Farmland classification: Not prime farmland Map Unit Composition Brookston and similar soils:65 percent Urban land:30 percent Minor components:5 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Brookston Setting Landform:Till plains, depressions Landform position (two-dimensional):Toeslope Landform position (three-dimensional):Dip Down-slope shape:Linear, concave Across-slope shape:Concave Parent material:Loess over loamy till Typical profile Ap - 0 to 16 inches: silty clay loam Btg1 - 16 to 32 inches: silty clay loam Btg2 - 32 to 44 inches: loam C - 44 to 60 inches: loam Properties and qualities Slope:0 to 2 percent Depth to restrictive feature:More than 80 inches Drainage class:Poorly drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat):Moderately high (0.20 to 0.60 in/hr) Depth to water table:About 0 to 12 inches Frequency of flooding:None Frequency of ponding:Frequent Calcium carbonate, maximum content:40 percent Maximum salinity:Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: Moderate (about 8.9 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 2w Hydrologic Soil Group: B/D Ecological site: F111XA007IN - Till Depression Flatwood Hydric soil rating: Yes Custom Soil Resource Report 13 Minor Components Crosby Percent of map unit:5 percent Landform:Till plains Landform position (two-dimensional):Footslope, summit Landform position (three-dimensional):Talf Down-slope shape:Concave Across-slope shape:Linear Ecological site:F111XA008IN - Wet Till Ridge Hydric soil rating: No Custom Soil Resource Report 14 Soil Information for All Uses Soil Properties and Qualities The Soil Properties and Qualities section includes various soil properties and qualities displayed as thematic maps with a summary table for the soil map units in the selected area of interest. A single value or rating for each map unit is generated by aggregating the interpretive ratings of individual map unit components. This aggregation process is defined for each property or quality. Soil Qualities and Features Soil qualities are behavior and performance attributes that are not directly measured, but are inferred from observations of dynamic conditions and from soil properties. Example soil qualities include natural drainage, and frost action. Soil features are attributes that are not directly part of the soil. Example soil features include slope and depth to restrictive layer. These features can greatly impact the use and management of the soil. Hydrologic Soil Group Hydrologic soil groups are based on estimates of runoff potential. Soils are assigned to one of four groups according to the rate of water infiltration when the soils are not protected by vegetation, are thoroughly wet, and receive precipitation from long-duration storms. The soils in the United States are assigned to four groups (A, B, C, and D) and three dual classes (A/D, B/D, and C/D). The groups are defined as follows: Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly wet. These consist mainly of deep, well drained to excessively drained sands or gravelly sands. These soils have a high rate of water transmission. Group B. Soils having a moderate infiltration rate when thoroughly wet. These consist chiefly of moderately deep or deep, moderately well drained or well drained soils that have moderately fine texture to moderately coarse texture. These soils have a moderate rate of water transmission. 15 Group C. Soils having a slow infiltration rate when thoroughly wet. These consist chiefly of soils having a layer that impedes the downward movement of water or soils of moderately fine texture or fine texture. These soils have a slow rate of water transmission. Group D. Soils having a very slow infiltration rate (high runoff potential) when thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential, soils that have a high water table, soils that have a claypan or clay layer at or near the surface, and soils that are shallow over nearly impervious material. These soils have a very slow rate of water transmission. If a soil is assigned to a dual hydrologic group (A/D, B/D, or C/D), the first letter is for drained areas and the second is for undrained areas. Only the soils that in their natural condition are in group D are assigned to dual classes. Custom Soil Resource Report 16 17 Custom Soil Resource Report Map—Hydrologic Soil Group 44261384426146442615444261624426170442617844261864426138442614644261544426162442617044261784426186574289 574297 574305 574313 574321 574329 574337 574345 574353 574361 574289 574297 574305 574313 574321 574329 574337 574345 574353 574361 39° 58' 57'' N 86° 7' 47'' W39° 58' 57'' N86° 7' 44'' W39° 58' 55'' N 86° 7' 47'' W39° 58' 55'' N 86° 7' 44'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 16N WGS84 0 15 30 60 90 Feet 0 5 10 20 30 Meters Map Scale: 1:352 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Rating Polygons A A/D B B/D C C/D D Not rated or not available Soil Rating Lines A A/D B B/D C C/D D Not rated or not available Soil Rating Points A A/D B B/D C C/D D Not rated or not available Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:15,800. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Hamilton County, Indiana Survey Area Data: Version 24, Sep 1, 2023 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jun 15, 2022—Jun 21, 2022 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report 18 Table—Hydrologic Soil Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI YbvA Brookston silty clay loam-Urban land complex, 0 to 2 percent slopes B/D 0.6 100.0% Totals for Area of Interest 0.6 100.0% Rating Options—Hydrologic Soil Group Aggregation Method: Dominant Condition Component Percent Cutoff: None Specified Tie-break Rule: Higher Custom Soil Resource Report 19 References American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep-water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http://www.nrcs.usda.gov/wps/portal/ nrcs/detail/national/soils/?cid=nrcs142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ home/?cid=nrcs142p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nrcs.usda.gov/wps/portal/nrcs/ detail/national/landuse/rangepasture/?cid=stelprdb1043084 20 United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. http://www.nrcs.usda.gov/wps/portal/ nrcs/detail/soils/scientists/?cid=nrcs142p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/? cid=nrcs142p2_053624 United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052290.pdf Custom Soil Resource Report 21 Appendix ‘B’ EXISTING BASIN MAP EXISTING “C” & “CN” CALCULATIONS EXISTING HYDROCAD MODEL AND RESULTS MononGreenwayFIVE-TEN SUBDIVISION KING SUBDIVISION 1StAveNw507 450 440 429 510 500 430 420 507 507 Hamilton County, Indiana Esri Community Maps Contributors, Hamilton County GIS, © OpenStreetMap, Microsoft, Esri, TomTom, Garmin, SafeGraph, GeoTechnologies, Inc, METI/NASA, USGS, EPA, NPS, US Census Bureau, USDA, USFWS 4/8/2024, 11:30:06 AM 0 60 12030 ft 0 20 4010 m 1:629 Author: Hamilton County Hamilton County compiled this map. Although strict accuracy standards have been employed, Hamilton County does not warrant or guarantee the accuracy of the information contained herein and disclaims any and all liability resulting from any error or omission. EXISTING SITE A = 0.567 AC TC = 21.3 MIN "C" = 0.25 Sub Sub-Area Soil Area Area Manning Area Cover Condition(s) Type C CN (ft²)(acres) % n A C 0.9 98 0 0.000 0.00 0.013 B C 0.85 98 0 0.000 0.00 0.013 C A 1 100 0 0.000 0.00 0.011 D C/D 0.35 80 0 0.000 0.00 0.200 E C/D 0.3 61 11,952 0.274 48.37 0.035 F C/D 0.2 55 12,758 0.293 51.63 0.110 0.25 58.00 24,710 0.567 100.00 0.0737 Slope 'A' Slope 'B' Slope 'C'0.00 Min 0 0 0 0.011 0.41 0.013 3.00 3.00 3.00 0.0040 0.0100 0.0100 Slope 'A' Slope 'B' Slope 'C' Slope 'D'0.00 Min 0 0 0 0 9.0 9.0 9.0 10.0 0.0050 0.0114 0.0092 0.0100 n Kv (ft/s) 0.011 20.3282 * 0.050 16.1345 * 0.060 15.0 0.170 10.0 0.150 9.0 0.240 7.0 0.410 5.0 0.130 2.5 0.400 0.800 0.00 Minutes HEC-HMS only (Lag Time = Tc * 0.60)4.00 Minutes Rounded Lag Time to nearest minute 4.00 Minutes SCS Runoff Curve Number Calculation Coefficients Impevrious - Roof Impevrious - Concrete or Asphalt Pvmt Flow Length (ft) Kv (flow velocity in ft/s) from Table below Impevrious - Lake or Water Body Lots<1/2 AC SF Lawn Total Area / Weighted Values = Sub-Area Tc= Sub-Area Tc= Flow Length (feet) Manning's n (use chart below or above) SHEET FLOW (<= 100 FEET) SHALLOW CONCENTRATED FLOW Tc = .007(nL)^0.8/(P2)^0.5*(s)^0.4 Rounded Lag Time = Notes: Time of concentration developed by SCS upland method as outlined in "National Engineering Handbook" and TR-55 Manual Section 4 - Hydrology (NEH-4). Upland velocities determined from Figure 15.2 and NEH-4 formulas. Time of Concentration = Lag Time = Paved Woods Time of Concentration - Upland Method & TR-55 (Small Drainage Areas < 2000 Ac) Calculations by: Area / Sub-Area Name: JAMES HALL Existing Site (Lots 1 & 2) EXISTING CONDITIONS: Tc's, Areas, Soils, Runoff Coef's, Mannings Project Name / Location: Project Number (s): Company: 510 Subdivision Woods: Heavy Underbrush Surface Description 2yr Precip (in) for a 24hr Rainfall Depth Fallow (no residue) Culativated Residue<= 20% Culativated Residue> 20% Slope (feet/feet) Tc = L/Kv*(S)^0.5 Slope (ft/ft) Woodland Forest w/ Heavy Litter Grass: Short paririe Unpaved (non-Paved) Grassed Waterway Nearly Bare & Untilled Cultivated Straight Rows Surface Description Shallow Concentrated Flow Velocity *Marion County Stromwater Manual (4-digits) Sheet Flow Manning's n Values Woods: Light Underbrush Grass: Dense Grass: Bermuda Range (natural) Smooth Surface (conc, asphalt, gravel, bare soil) Short Grass Pasture Drainage Diagram for 510 SubDiv Prepared by JD HALL LAND SURVEYING 4/7/2024 HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcat Reach Pond Link EXISTING Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 2Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment EXISTING: [48] Hint: Peak<CiA due to short duration Runoff = 0.33 cfs @ 0.24 hrs, Volume= 423 cf, Depth= 0.21" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr Area (sf) C Description 12,758 0.20 WOODED PORTION 11,952 0.30 UNIMPROVED AREA (LAWN) 24,710 0.25 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.6 100 0.0280 0.1 Sheet Flow, SHEET Woods: Light underbrush n= 0.400 P2= 2.66" 0.7 100 0.0280 2.5 Shallow Concentrated Flow, SHALLOW Grassed Waterway Kv= 15.0 fps 21.3 200 Total Subcatchment EXISTING: Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr Runoff Area=24,710 sf Runoff Volume=423 cf Runoff Depth=0.21" Flow Length=200' Tc=21.3 min C=0.25 0.33 cfs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 3Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment EXISTING: [48] Hint: Peak<CiA due to short duration Runoff = 0.44 cfs @ 0.24 hrs, Volume= 559 cf, Depth= 0.27" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr Area (sf) C Description 12,758 0.20 WOODED PORTION 11,952 0.30 UNIMPROVED AREA (LAWN) 24,710 0.25 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.6 100 0.0280 0.1 Sheet Flow, SHEET Woods: Light underbrush n= 0.400 P2= 2.66" 0.7 100 0.0280 2.5 Shallow Concentrated Flow, SHALLOW Grassed Waterway Kv= 15.0 fps 21.3 200 Total Subcatchment EXISTING: Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr Runoff Area=24,710 sf Runoff Volume=559 cf Runoff Depth=0.27" Flow Length=200' Tc=21.3 min C=0.25 0.44 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 4Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment EXISTING: [48] Hint: Peak<CiA due to short duration Runoff = 0.65 cfs @ 0.24 hrs, Volume= 833 cf, Depth= 0.40" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Area (sf) C Description 12,758 0.20 WOODED PORTION 11,952 0.30 UNIMPROVED AREA (LAWN) 24,710 0.25 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 20.6 100 0.0280 0.1 Sheet Flow, SHEET Woods: Light underbrush n= 0.400 P2= 2.66" 0.7 100 0.0280 2.5 Shallow Concentrated Flow, SHALLOW Grassed Waterway Kv= 15.0 fps 21.3 200 Total Subcatchment EXISTING: Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Runoff Area=24,710 sf Runoff Volume=833 cf Runoff Depth=0.40" Flow Length=200' Tc=21.3 min C=0.25 0.65 cfs Appendix ‘C’ PROPOSED BASIN MAP PROPOSED “C” & “CN” CALCULATIONS PROPOSED HYDROCAD MODEL AND RESULTS WEIR CAPACITY CALCULATIONS HYDROFLOW PIPE CALCULATIONS 1ST AVE. NW5TH STREET NW ALLEY 5TH (10' ROW)MONON GREENWAY TRAIL (33' 1/2 ROW)ORANGE & GREEN IS PROPOSED DEVELOPMENT PROPOSED LOT 2: 0.26 Ac. (11,326 Sft.) PROPOSED LOT 1: 0.31 Ac. (13,504 Sft.) PROPOSED LOT 3: 1.38 Ac. (60,113 Sft.)PRIVATE DRIVEPROPOSED BASIN MAP OVERFLOW WEIR LOCATION EAST CONTRIB. LOTS, TC=12 "C" = 0.35, BYPASSED SOUTH CONTRIB LOTS, TC=3.3 "C" = 0.50 BYPASSED SUBJECT SITE TC=14, "C" = 0.35 Sub Sub-Area Soil Area Area Manning Area Cover Condition(s) Type C CN (ft²)(acres) % n A C 0.9 98 0 0.000 0.00 0.013 B C 0.85 98 0 0.000 0.00 0.013 C A 1 100 0 0.000 0.00 0.011 D C/D 0.35 85 24,710 0.567 100.00 0.200 E C 0.3 82 0 0.000 0.00 0.035 F A 0.3 55 0 0.000 0.00 0.110 0.35 85.00 24,710 0.567 100.00 0.2000 Slope 'A' Slope 'B' Slope 'C'0.00 Min 0 0 0 0.011 0.41 0.013 3.00 3.00 3.00 0.0040 0.0100 0.0100 Slope 'A' Slope 'B' Slope 'C' Slope 'D'0.00 Min 0 0 0 0 9.0 9.0 9.0 10.0 0.0050 0.0114 0.0092 0.0100 n Kv (ft/s) 0.011 20.3282 * 0.050 16.1345 * 0.060 15.0 0.170 10.0 0.150 9.0 0.240 7.0 0.410 5.0 0.130 2.5 0.400 0.800 0.00 Minutes HEC-HMS only (Lag Time = Tc * 0.60)4.00 Minutes Rounded Lag Time to nearest minute 4.00 Minutes Notes: Time of concentration developed by SCS upland method as outlined in "National Engineering Handbook" and TR-55 Manual Section 4 - Hydrology (NEH-4). Upland velocities determined from Figure 15.2 and NEH-4 formulas. Woods: Light Underbrush *Marion County Stromwater Manual (4-digits) Woods: Heavy Underbrush Time of Concentration = Lag Time = Rounded Lag Time = Grass: Dense Short Grass Pasture Grass: Bermuda Woodland Range (natural) Forest w/ Heavy Litter Culativated Residue<= 20% Grassed Waterway Culativated Residue> 20% Nearly Bare & Untilled Grass: Short paririe Cultivated Straight Rows Surface Description Surface Description Smooth Surface (conc, asphalt, gravel, bare soil) Paved Fallow (no residue) Unpaved (non-Paved) Sub-Area Tc= Flow Length (ft) Kv (flow velocity in ft/s) from Table below Slope (ft/ft) Sheet Flow Manning's n Values Shallow Concentrated Flow Velocity Flow Length (feet) Manning's n (use chart below or above) 2yr Precip (in) for a 24hr Rainfall Depth Slope (feet/feet) SHALLOW CONCENTRATED FLOW Tc = L/Kv*(S)^0.5 Total Area / Weighted Values = Time of Concentration - Upland Method & TR-55 (Small Drainage Areas < 2000 Ac) SHEET FLOW (<= 100 FEET) Tc = .007(nL)^0.8/(P2)^0.5*(s)^0.4 Sub-Area Tc= Impevrious - Roof Impevrious - Concrete or Asphalt Pvmt Impevrious - Lake or Water Body Lots<1/2 AC SF Row Crop Woods Calculations by:JAMES HALL Area / Sub-Area Name:Developed Site (Lots 1 & 2 only) SCS Runoff Curve Number Calculation Coefficients EXISTING CONDITIONS: Tc's, Areas, Soils, Runoff Coef's, Mannings Project Name / Location:510 Subdivision Project Number (s): Company: Drainage Diagram for 510 SubDiv Prepared by JD HALL LAND SURVEYING 5/20/2024 HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcat Reach Pond Link SA 1 LOT 3 DIR TO WEST SA 2 Lot 2 SA 3 Offsite E Lots SA 4 Lot 1 SA 5 SOUTH OFFSITE 3R 15" HDPE 5R overflow 7R 15" HDPE 3 P-Pond 4 BYPASS SWALE 4L Q100in * 1.25 5L OVERLAND TO THE NORTH Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 2Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Time span=0.00-24.00 hrs, dt=0.01 hrs, 2401 points x 3 Runoff by Rational method, Rise/Fall=1.0/1.0 xTc Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=60,250 sf Runoff Depth=0.29"Subcatchment SA 1: LOT 3 DIR TO WEST Flow Length=400' Tc=43.6 min C=0.35 Runoff=0.55 cfs 1,444 cf Runoff Area=11,313 sf Runoff Depth=0.29"Subcatchment SA 2: Lot 2 Flow Length=140' Tc=13.6 min C=0.35 Runoff=0.32 cfs 271 cf Runoff Area=21,900 sf Runoff Depth=0.29"Subcatchment SA 3: Offsite E Lots Flow Length=170' Tc=12.1 min C=0.35 Runoff=0.62 cfs 525 cf Runoff Area=13,400 sf Runoff Depth=0.29"Subcatchment SA 4: Lot 1 Flow Length=140' Tc=13.6 min C=0.35 Runoff=0.38 cfs 321 cf Runoff Area=28,164 sf Runoff Depth=0.41"Subcatchment SA 5: SOUTH OFFSITE Flow Length=380' Tc=6.0 min C=0.50 Runoff=1.15 cfs 964 cf Peak Depth=0.53' Max Vel=3.6 fps Inflow=1.81 cfs 2,081 cfReach 3R: 15" HDPE D=15.0" n=0.013 L=95.6' S=0.0054 '/' Capacity=4.76 cfs Outflow=1.80 cfs 2,081 cf Peak Depth=0.00' Max Vel=0.0 fps Inflow=0.00 cfs 0 cfReach 5R: overflow n=0.022 L=2.0' S=0.0750 '/' Capacity=61.24 cfs Outflow=0.00 cfs 0 cf Peak Depth=0.66' Max Vel=2.8 fps Inflow=1.80 cfs 2,081 cfReach 7R: 15" HDPE D=15.0" n=0.013 L=18.8' S=0.0027 '/' Capacity=3.33 cfs Outflow=1.80 cfs 2,081 cf Peak Elev=813.33' Storage=528 cf Inflow=0.71 cfs 592 cfPond 3: P-Pond Primary=0.06 cfs 592 cf Secondary=0.00 cfs 0 cf Outflow=0.06 cfs 592 cf Peak Elev=814.79' Storage=49 cf Inflow=1.77 cfs 1,489 cfPond 4: BYPASS SWALE Primary=1.77 cfs 1,489 cf Secondary=0.00 cfs 0 cf Outflow=1.77 cfs 1,489 cf x 1.25 Inflow=0.00 cfs 0 cfLink 4L: Q100in * 1.25 Primary=0.00 cfs 0 cf Inflow=0.55 cfs 1,444 cfLink 5L: OVERLAND TO THE NORTH Primary=0.55 cfs 1,444 cf Total Runoff Area = 135,027 sf Runoff Volume = 3,525 cf Average Runoff Depth = 0.31" Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 3Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 1: LOT 3 DIR TO WEST EXISTING 1.38 ACRE TRACT (LOT 3) THIS AREA DRAINS WEST INTO EXISTING LOW AT WOODLINE AND EVENTUALY NORTHWEST INTO RDE INLET OF NORTH ADJOINER PROPERTY. THIS WILL NOT BE INTERCEPTED OR TREATED AS THE EXISTING CONDITION DOES NOT DRAIN SOUTH AT ALL.. IS CONSIDERED BYPASSED [48] Hint: Peak<CiA due to short duration Runoff = 0.55 cfs @ 0.24 hrs, Volume= 1,444 cf, Depth= 0.29" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr Area (sf) C Description 60,250 0.35 Single Family North Lot Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.7 100 0.0260 0.2 Sheet Flow, SHEET Grass: Short n= 0.150 P2= 2.66" 33.9 300 0.0260 0.1 Sheet Flow, Shallow Grass: Dense n= 0.240 P2= 2.66" 43.6 400 Total Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 4Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 1: LOT 3 DIR TO WEST Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr Runoff Area=60,250 sf Runoff Volume=1,444 cf Runoff Depth=0.29" Flow Length=400' Tc=43.6 min C=0.35 0.55 cfs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 5Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 2: Lot 2 Lot 2 Part of developed area, drainage controlled via underground detention basin w/ chambers and additional orifice control at downstream storm structure Runoff = 0.32 cfs @ 0.23 hrs, Volume= 271 cf, Depth= 0.29" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr Area (sf) C Description 11,313 0.35 Single Family Lot 2 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.3 100 0.0300 0.1 Sheet Flow, SHEET Grass: Dense n= 0.240 P2= 2.66" 0.3 40 0.0300 2.6 Shallow Concentrated Flow, Shallow Grassed Waterway Kv= 15.0 fps 13.6 140 Total Subcatchment SA 2: Lot 2 Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr Runoff Area=11,313 sf Runoff Volume=271 cf Runoff Depth=0.29" Flow Length=140' Tc=13.6 min C=0.35 0.32 cfs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 6Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 3: Offsite E Lots Two Ex Family Lots to East < 10,000 sf THIS AREA WILL BE BYPASSED VIA SWALE INTO PROPOSED DRAINAGE SYSTEM, SEPERATE FOR OTHER DRAINAGE FEATURES. Runoff = 0.62 cfs @ 0.21 hrs, Volume= 525 cf, Depth= 0.29" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr Area (sf) C Description 10,950 0.35 Single Family Home North Lot 10,950 0.35 Single Family Home South Lot 21,900 0.35 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 100 0.0410 0.1 Sheet Flow, Sheet Grass: Dense n= 0.240 P2= 2.66" 0.4 70 0.0410 3.3 Shallow Concentrated Flow, Shallow Unpaved Kv= 16.1 fps 12.1 170 Total Subcatchment SA 3: Offsite E Lots Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr Runoff Area=21,900 sf Runoff Volume=525 cf Runoff Depth=0.29" Flow Length=170' Tc=12.1 min C=0.35 0.62 cfs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 7Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 4: Lot 1 Lot 1 Part of developed area, drainage controlled via underground detention basin w/ chambers and additional orifice control at downstream storm structure Runoff = 0.38 cfs @ 0.23 hrs, Volume= 321 cf, Depth= 0.29" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr Area (sf) C Description 13,400 0.35 Single Family Lot 1 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.3 100 0.0300 0.1 Sheet Flow, SHEET Grass: Dense n= 0.240 P2= 2.66" 0.3 40 0.0300 2.6 Shallow Concentrated Flow, SHALLOW Grassed Waterway Kv= 15.0 fps 13.6 140 Total Subcatchment SA 4: Lot 1 Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr Runoff Area=13,400 sf Runoff Volume=321 cf Runoff Depth=0.29" Flow Length=140' Tc=13.6 min C=0.35 0.38 cfs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 8Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 5: SOUTH OFFSITE AREAS SOUTH OFTHE 5TH STREET ALLEY THIS AREA WILL BE BYPASSED VIA SWALE INTO PROPOSED DRAINAGE SYSTEM, SEPERATE FOR OTHER DRAINAGE FEATURES. Runoff = 1.15 cfs @ 0.10 hrs, Volume= 964 cf, Depth= 0.41" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr Area (sf) C Description 13,061 0.45 Single Family Lot west 11,660 0.45 Single Familt Lot east 3,443 0.85 ALLEY 5TH STREET NW 28,164 0.50 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.5 100 0.0158 1.1 Sheet Flow, SHEET Smooth surfaces n= 0.011 P2= 2.66" 1.8 280 0.0158 2.6 Shallow Concentrated Flow, SHALLOW Paved Kv= 20.3 fps 3.3 380 Total, Increased to minimum Tc = 6.0 min Subcatchment SA 5: SOUTH OFFSITE Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr Runoff Area=28,164 sf Runoff Volume=964 cf Runoff Depth=0.41" Flow Length=380' Tc=6.0 min C=0.50 1.15 cfs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 9Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Reach 3R: 15" HDPE THIS IS A PAVEMENT SECTION CONSISTING OF A 2' CHAIRBACK CURB & 3% PAVMENT XSECTION APPROXIMATING THE PAVEMENT OF 5TH STREETNW [52] Hint: Inlet conditions not evaluated Inflow Area = 74,777 sf, Inflow Depth = 0.33" for 2-Year event Inflow = 1.81 cfs @ 0.23 hrs, Volume= 2,081 cf Outflow = 1.80 cfs @ 0.23 hrs, Volume= 2,081 cf, Atten= 0%, Lag= 0.2 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Max. Velocity= 3.6 fps, Min. Travel Time= 0.4 min Avg. Velocity = 1.3 fps, Avg. Travel Time= 1.2 min Peak Depth= 0.53' @ 0.23 hrs Capacity at bank full= 4.76 cfs Inlet Invert= 811.87', Outlet Invert= 811.35' 15.0" Diameter Pipe, n= 0.013 Corrugated PE, smooth interior Length= 95.6' Slope= 0.0054 '/' Reach 3R: 15" HDPE Inflow Outflow Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)2 1 0 Inflow Area=74,777 sf Peak Depth=0.53' Max Vel=3.6 fps D=15.0" n=0.013 L=95.6' S=0.0054 '/' Capacity=4.76 cfs 1.81 cfs 1.80 cfs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 10Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Reach 5R: overflow Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Outflow = 0.00 cfs @ 0.00 hrs, Volume= 0 cf, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Max. Velocity= 0.0 fps, Min. Travel Time= 0.0 min Avg. Velocity = 0.0 fps, Avg. Travel Time= 0.0 min Peak Depth= 0.00' @ 0.00 hrs Capacity at bank full= 61.24 cfs Inlet Invert= 815.75', Outlet Invert= 815.60' 10.00' x 0.50' deep channel, n= 0.022 Earth, clean & straight Side Slope Z-value= 3.0 '/' Top Width= 13.00' Length= 2.0' Slope= 0.0750 '/' Reach 5R: overflow Inflow Outflow Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Peak Depth=0.00' Max Vel=0.0 fps n=0.022 L=2.0' S=0.0750 '/' Capacity=61.24 cfs 0.00 cfs 0.00 cfs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 11Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Reach 7R: 15" HDPE [52] Hint: Inlet conditions not evaluated [62] Warning: Submerged 3% of Reach 3R inlet Inflow Area = 74,777 sf, Inflow Depth = 0.33" for 2-Year event Inflow = 1.80 cfs @ 0.23 hrs, Volume= 2,081 cf Outflow = 1.80 cfs @ 0.23 hrs, Volume= 2,081 cf, Atten= 0%, Lag= 0.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Max. Velocity= 2.8 fps, Min. Travel Time= 0.1 min Avg. Velocity = 1.0 fps, Avg. Travel Time= 0.3 min Peak Depth= 0.66' @ 0.23 hrs Capacity at bank full= 3.33 cfs Inlet Invert= 811.25', Outlet Invert= 811.20' 15.0" Diameter Pipe, n= 0.013 Corrugated PE, smooth interior Length= 18.8' Slope= 0.0027 '/' Reach 7R: 15" HDPE Inflow Outflow Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)2 1 0 Inflow Area=74,777 sf Peak Depth=0.66' Max Vel=2.8 fps D=15.0" n=0.013 L=18.8' S=0.0027 '/' Capacity=3.33 cfs 1.80 cfs 1.80 cfs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 12Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Pond 3: P-Pond Stone basin with 5 - 24" CMP chanmbers (Contech Perf CMP or equivlent) 93 lf @ 0.01% Storage Required 1335.84 CF Storage Provided 1359 CF Peak 10yr = 813.72 Peak 100yr = 814.38 2.4" Orifice Controlled Required 10yr =0.06 CFS Required 100yr =0.17 CFS Provided 10yr = 0.06 CFS Provided 100yr = 0.07 CFS Inflow Area = 24,713 sf, Inflow Depth = 0.29" for 2-Year event Inflow = 0.71 cfs @ 0.23 hrs, Volume= 592 cf Outflow = 0.06 cfs @ 0.44 hrs, Volume= 592 cf, Atten= 92%, Lag= 12.7 min Primary = 0.06 cfs @ 0.44 hrs, Volume= 592 cf Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Peak Elev= 813.33' @ 0.44 hrs Surf.Area= 2,280 sf Storage= 528 cf Plug-Flow detention time= 89.5 min calculated for 592 cf (100% of inflow) Center-of-Mass det. time= 89.6 min ( 103.4 - 13.8 ) Volume Invert Avail.Storage Storage Description #1 812.10' 29 cf UG STONE BASIN (Irregular) Listed below (Recalc) 8,801 cf Overall - 1,461 cf Embedded = 7,340 cf x 0.4% Voids #2 812.10' 1,461 cf 24.0"D x 93.00'L 24" SSD CONTECH OR EQUIV. S= 0.0100 '/' x 5 Inside #1 1,490 cf Total Available Storage Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 812.10 2,280 238.0 0 0 2,280 813.61 2,280 238.0 3,443 3,443 2,639 815.96 2,280 238.0 5,358 8,801 3,199 Device Routing Invert Outlet Devices #1 Primary 812.00'2.0" x 28.0' long 12" HDPE / ORFICE CNTL CPP, square edge headwall, Ke= 0.500 Outlet Invert= 811.97' S= 0.0011 '/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior #2 Secondary 816.96'E. EDGE OF STONE SHOULDER, C= 2.62 Head (feet) 0.00 0.10 Width (feet) 95.00 100.00 Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 13Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Primary OutFlow Max=0.06 cfs @ 0.44 hrs HW=813.33' TW=811.99' (Dynamic Tailwater) 1=12" HDPE / ORFICE CNTL (Barrel Controls 0.06 cfs @ 2.6 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=812.10' TW=814.00' (Dynamic Tailwater) 2=E. EDGE OF STONE SHOULDER ( Controls 0.00 cfs) Pond 3: P-Pond Inflow Outflow Primary Secondary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=24,713 sf Peak Elev=813.33' Storage=528 cf 0.71 cfs 0.06 cfs 0.06 cfs 0.00 cfs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 14Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Pond 4: BYPASS SWALE Inflow Area = 50,064 sf, Inflow Depth = 0.36" for 2-Year event Inflow = 1.77 cfs @ 0.21 hrs, Volume= 1,489 cf Outflow = 1.77 cfs @ 0.23 hrs, Volume= 1,489 cf, Atten= 0%, Lag= 1.0 min Primary = 1.77 cfs @ 0.23 hrs, Volume= 1,489 cf Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Peak Elev= 814.79' @ 0.23 hrs Surf.Area= 173 sf Storage= 49 cf Plug-Flow detention time= 0.4 min calculated for 1,489 cf (100% of inflow) Center-of-Mass det. time= 0.4 min ( 11.5 - 11.1 ) Volume Invert Avail.Storage Storage Description #1 814.00' 1,009 cf Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 814.00 1 3.1 0 0 1 815.00 270 118.0 96 96 1,110 816.00 1,776 257.0 913 1,009 5,262 Device Routing Invert Outlet Devices #1 Primary 814.00'12.0" x 47.6' long 12" hdpe CPP, mitered to conform to fill, Ke= 0.700 Outlet Invert= 811.97' S= 0.0426 '/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior #2 Secondary 815.75'EARTH WEIR, C= 2.62 Head (feet) 0.00 0.25 Width (feet) 10.00 13.00 Primary OutFlow Max=1.77 cfs @ 0.23 hrs HW=814.79' TW=812.40' (Dynamic Tailwater) 1=12" hdpe (Inlet Controls 1.77 cfs @ 2.7 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=814.00' TW=0.00' (Dynamic Tailwater) 2=EARTH WEIR ( Controls 0.00 cfs) Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 15Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Pond 4: BYPASS SWALE Inflow Outflow Primary Secondary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Inflow Area=50,064 sf Peak Elev=814.79' Storage=49 cf 1.77 cfs 1.77 cfs 1.77 cfs 0.00 cfs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 16Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Link 4L: Q100in * 1.25 Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Primary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow x 1.25, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Link 4L: Q100in * 1.25 Inflow Primary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 x 1.25 0.00 cfs 0.00 cfs Hamilton Co. Indiana 2-Year Duration=14 min, Inten=3.52 in/hr510 SubDiv Page 17Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Link 5L: OVERLAND TO THE NORTH Inflow Area = 60,250 sf, Inflow Depth = 0.29" for 2-Year event Inflow = 0.55 cfs @ 0.24 hrs, Volume= 1,444 cf Primary = 0.55 cfs @ 0.24 hrs, Volume= 1,444 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Link 5L: OVERLAND TO THE NORTH Inflow Primary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=60,250 sf 0.55 cfs 0.55 cfs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 18Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Time span=0.00-24.00 hrs, dt=0.01 hrs, 2401 points x 3 Runoff by Rational method, Rise/Fall=1.0/1.0 xTc Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=60,250 sf Runoff Depth=0.38"Subcatchment SA 1: LOT 3 DIR TO WEST Flow Length=400' Tc=43.6 min C=0.35 Runoff=0.73 cfs 1,910 cf Runoff Area=11,313 sf Runoff Depth=0.38"Subcatchment SA 2: Lot 2 Flow Length=140' Tc=13.6 min C=0.35 Runoff=0.43 cfs 358 cf Runoff Area=21,900 sf Runoff Depth=0.38"Subcatchment SA 3: Offsite E Lots Flow Length=170' Tc=12.1 min C=0.35 Runoff=0.83 cfs 694 cf Runoff Area=13,400 sf Runoff Depth=0.38"Subcatchment SA 4: Lot 1 Flow Length=140' Tc=13.6 min C=0.35 Runoff=0.51 cfs 425 cf Runoff Area=28,164 sf Runoff Depth=0.54"Subcatchment SA 5: SOUTH OFFSITE Flow Length=380' Tc=6.0 min C=0.50 Runoff=1.52 cfs 1,275 cf Peak Depth=0.62' Max Vel=3.9 fps Inflow=2.35 cfs 2,752 cfReach 3R: 15" HDPE D=15.0" n=0.013 L=95.6' S=0.0054 '/' Capacity=4.76 cfs Outflow=2.35 cfs 2,752 cf Peak Depth=0.00' Max Vel=0.0 fps Inflow=0.00 cfs 0 cfReach 5R: overflow n=0.022 L=2.0' S=0.0750 '/' Capacity=61.24 cfs Outflow=0.00 cfs 0 cf Peak Depth=0.77' Max Vel=2.9 fps Inflow=2.35 cfs 2,752 cfReach 7R: 15" HDPE D=15.0" n=0.013 L=18.8' S=0.0027 '/' Capacity=3.33 cfs Outflow=2.35 cfs 2,752 cf Peak Elev=813.54' Storage=715 cf Inflow=0.93 cfs 783 cfPond 3: P-Pond Primary=0.06 cfs 783 cf Secondary=0.00 cfs 0 cf Outflow=0.06 cfs 783 cf Peak Elev=814.97' Storage=88 cf Inflow=2.34 cfs 1,969 cfPond 4: BYPASS SWALE Primary=2.31 cfs 1,969 cf Secondary=0.00 cfs 0 cf Outflow=2.31 cfs 1,969 cf x 1.25 Inflow=0.00 cfs 0 cfLink 4L: Q100in * 1.25 Primary=0.00 cfs 0 cf Inflow=0.73 cfs 1,910 cfLink 5L: OVERLAND TO THE NORTH Primary=0.73 cfs 1,910 cf Total Runoff Area = 135,027 sf Runoff Volume = 4,662 cf Average Runoff Depth = 0.41" Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 19Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 1: LOT 3 DIR TO WEST EXISTING 1.38 ACRE TRACT (LOT 3) THIS AREA DRAINS WEST INTO EXISTING LOW AT WOODLINE AND EVENTUALY NORTHWEST INTO RDE INLET OF NORTH ADJOINER PROPERTY. THIS WILL NOT BE INTERCEPTED OR TREATED AS THE EXISTING CONDITION DOES NOT DRAIN SOUTH AT ALL.. IS CONSIDERED BYPASSED [48] Hint: Peak<CiA due to short duration Runoff = 0.73 cfs @ 0.24 hrs, Volume= 1,910 cf, Depth= 0.38" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr Area (sf) C Description 60,250 0.35 Single Family North Lot Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.7 100 0.0260 0.2 Sheet Flow, SHEET Grass: Short n= 0.150 P2= 2.66" 33.9 300 0.0260 0.1 Sheet Flow, Shallow Grass: Dense n= 0.240 P2= 2.66" 43.6 400 Total Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 20Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 1: LOT 3 DIR TO WEST Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr Runoff Area=60,250 sf Runoff Volume=1,910 cf Runoff Depth=0.38" Flow Length=400' Tc=43.6 min C=0.35 0.73 cfs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 21Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 2: Lot 2 Lot 2 Part of developed area, drainage controlled via underground detention basin w/ chambers and additional orifice control at downstream storm structure Runoff = 0.43 cfs @ 0.23 hrs, Volume= 358 cf, Depth= 0.38" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr Area (sf) C Description 11,313 0.35 Single Family Lot 2 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.3 100 0.0300 0.1 Sheet Flow, SHEET Grass: Dense n= 0.240 P2= 2.66" 0.3 40 0.0300 2.6 Shallow Concentrated Flow, Shallow Grassed Waterway Kv= 15.0 fps 13.6 140 Total Subcatchment SA 2: Lot 2 Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr Runoff Area=11,313 sf Runoff Volume=358 cf Runoff Depth=0.38" Flow Length=140' Tc=13.6 min C=0.35 0.43 cfs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 22Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 3: Offsite E Lots Two Ex Family Lots to East < 10,000 sf THIS AREA WILL BE BYPASSED VIA SWALE INTO PROPOSED DRAINAGE SYSTEM, SEPERATE FOR OTHER DRAINAGE FEATURES. Runoff = 0.83 cfs @ 0.21 hrs, Volume= 694 cf, Depth= 0.38" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr Area (sf) C Description 10,950 0.35 Single Family Home North Lot 10,950 0.35 Single Family Home South Lot 21,900 0.35 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 100 0.0410 0.1 Sheet Flow, Sheet Grass: Dense n= 0.240 P2= 2.66" 0.4 70 0.0410 3.3 Shallow Concentrated Flow, Shallow Unpaved Kv= 16.1 fps 12.1 170 Total Subcatchment SA 3: Offsite E Lots Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.9 0.85 0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr Runoff Area=21,900 sf Runoff Volume=694 cf Runoff Depth=0.38" Flow Length=170' Tc=12.1 min C=0.35 0.83 cfs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 23Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 4: Lot 1 Lot 1 Part of developed area, drainage controlled via underground detention basin w/ chambers and additional orifice control at downstream storm structure Runoff = 0.51 cfs @ 0.23 hrs, Volume= 425 cf, Depth= 0.38" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr Area (sf) C Description 13,400 0.35 Single Family Lot 1 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.3 100 0.0300 0.1 Sheet Flow, SHEET Grass: Dense n= 0.240 P2= 2.66" 0.3 40 0.0300 2.6 Shallow Concentrated Flow, SHALLOW Grassed Waterway Kv= 15.0 fps 13.6 140 Total Subcatchment SA 4: Lot 1 Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr Runoff Area=13,400 sf Runoff Volume=425 cf Runoff Depth=0.38" Flow Length=140' Tc=13.6 min C=0.35 0.51 cfs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 24Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 5: SOUTH OFFSITE AREAS SOUTH OFTHE 5TH STREET ALLEY THIS AREA WILL BE BYPASSED VIA SWALE INTO PROPOSED DRAINAGE SYSTEM, SEPERATE FOR OTHER DRAINAGE FEATURES. Runoff = 1.52 cfs @ 0.10 hrs, Volume= 1,275 cf, Depth= 0.54" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr Area (sf) C Description 13,061 0.45 Single Family Lot west 11,660 0.45 Single Familt Lot east 3,443 0.85 ALLEY 5TH STREET NW 28,164 0.50 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.5 100 0.0158 1.1 Sheet Flow, SHEET Smooth surfaces n= 0.011 P2= 2.66" 1.8 280 0.0158 2.6 Shallow Concentrated Flow, SHALLOW Paved Kv= 20.3 fps 3.3 380 Total, Increased to minimum Tc = 6.0 min Subcatchment SA 5: SOUTH OFFSITE Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr Runoff Area=28,164 sf Runoff Volume=1,275 cf Runoff Depth=0.54" Flow Length=380' Tc=6.0 min C=0.50 1.52 cfs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 25Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Reach 3R: 15" HDPE THIS IS A PAVEMENT SECTION CONSISTING OF A 2' CHAIRBACK CURB & 3% PAVMENT XSECTION APPROXIMATING THE PAVEMENT OF 5TH STREETNW [52] Hint: Inlet conditions not evaluated Inflow Area = 74,777 sf, Inflow Depth = 0.44" for 10-Year event Inflow = 2.35 cfs @ 0.23 hrs, Volume= 2,752 cf Outflow = 2.35 cfs @ 0.24 hrs, Volume= 2,752 cf, Atten= 0%, Lag= 0.3 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Max. Velocity= 3.9 fps, Min. Travel Time= 0.4 min Avg. Velocity = 1.3 fps, Avg. Travel Time= 1.2 min Peak Depth= 0.62' @ 0.24 hrs Capacity at bank full= 4.76 cfs Inlet Invert= 811.87', Outlet Invert= 811.35' 15.0" Diameter Pipe, n= 0.013 Corrugated PE, smooth interior Length= 95.6' Slope= 0.0054 '/' Reach 3R: 15" HDPE Inflow Outflow Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)2 1 0 Inflow Area=74,777 sf Peak Depth=0.62' Max Vel=3.9 fps D=15.0" n=0.013 L=95.6' S=0.0054 '/' Capacity=4.76 cfs 2.35 cfs 2.35 cfs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 26Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Reach 5R: overflow Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Outflow = 0.00 cfs @ 0.00 hrs, Volume= 0 cf, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Max. Velocity= 0.0 fps, Min. Travel Time= 0.0 min Avg. Velocity = 0.0 fps, Avg. Travel Time= 0.0 min Peak Depth= 0.00' @ 0.00 hrs Capacity at bank full= 61.24 cfs Inlet Invert= 815.75', Outlet Invert= 815.60' 10.00' x 0.50' deep channel, n= 0.022 Earth, clean & straight Side Slope Z-value= 3.0 '/' Top Width= 13.00' Length= 2.0' Slope= 0.0750 '/' Reach 5R: overflow Inflow Outflow Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Peak Depth=0.00' Max Vel=0.0 fps n=0.022 L=2.0' S=0.0750 '/' Capacity=61.24 cfs 0.00 cfs 0.00 cfs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 27Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Reach 7R: 15" HDPE [52] Hint: Inlet conditions not evaluated [62] Warning: Submerged 12% of Reach 3R inlet Inflow Area = 74,777 sf, Inflow Depth = 0.44" for 10-Year event Inflow = 2.35 cfs @ 0.24 hrs, Volume= 2,752 cf Outflow = 2.35 cfs @ 0.24 hrs, Volume= 2,752 cf, Atten= 0%, Lag= 0.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Max. Velocity= 2.9 fps, Min. Travel Time= 0.1 min Avg. Velocity = 1.0 fps, Avg. Travel Time= 0.3 min Peak Depth= 0.77' @ 0.24 hrs Capacity at bank full= 3.33 cfs Inlet Invert= 811.25', Outlet Invert= 811.20' 15.0" Diameter Pipe, n= 0.013 Corrugated PE, smooth interior Length= 18.8' Slope= 0.0027 '/' Reach 7R: 15" HDPE Inflow Outflow Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)2 1 0 Inflow Area=74,777 sf Peak Depth=0.77' Max Vel=2.9 fps D=15.0" n=0.013 L=18.8' S=0.0027 '/' Capacity=3.33 cfs 2.35 cfs 2.35 cfs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 28Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Pond 3: P-Pond Stone basin with 5 - 24" CMP chanmbers (Contech Perf CMP or equivlent) 93 lf @ 0.01% Storage Required 1335.84 CF Storage Provided 1359 CF Peak 10yr = 813.72 Peak 100yr = 814.38 2.4" Orifice Controlled Required 10yr =0.06 CFS Required 100yr =0.17 CFS Provided 10yr = 0.06 CFS Provided 100yr = 0.07 CFS Inflow Area = 24,713 sf, Inflow Depth = 0.38" for 10-Year event Inflow = 0.93 cfs @ 0.23 hrs, Volume= 783 cf Outflow = 0.06 cfs @ 0.44 hrs, Volume= 783 cf, Atten= 93%, Lag= 12.9 min Primary = 0.06 cfs @ 0.44 hrs, Volume= 783 cf Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Peak Elev= 813.54' @ 0.44 hrs Surf.Area= 2,280 sf Storage= 715 cf Plug-Flow detention time= 112.4 min calculated for 783 cf (100% of inflow) Center-of-Mass det. time= 112.4 min ( 126.2 - 13.8 ) Volume Invert Avail.Storage Storage Description #1 812.10' 29 cf UG STONE BASIN (Irregular) Listed below (Recalc) 8,801 cf Overall - 1,461 cf Embedded = 7,340 cf x 0.4% Voids #2 812.10' 1,461 cf 24.0"D x 93.00'L 24" SSD CONTECH OR EQUIV. S= 0.0100 '/' x 5 Inside #1 1,490 cf Total Available Storage Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 812.10 2,280 238.0 0 0 2,280 813.61 2,280 238.0 3,443 3,443 2,639 815.96 2,280 238.0 5,358 8,801 3,199 Device Routing Invert Outlet Devices #1 Primary 812.00'2.0" x 28.0' long 12" HDPE / ORFICE CNTL CPP, square edge headwall, Ke= 0.500 Outlet Invert= 811.97' S= 0.0011 '/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior #2 Secondary 816.96'E. EDGE OF STONE SHOULDER, C= 2.62 Head (feet) 0.00 0.10 Width (feet) 95.00 100.00 Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 29Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Primary OutFlow Max=0.06 cfs @ 0.44 hrs HW=813.54' TW=811.99' (Dynamic Tailwater) 1=12" HDPE / ORFICE CNTL (Barrel Controls 0.06 cfs @ 2.9 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=812.10' TW=814.00' (Dynamic Tailwater) 2=E. EDGE OF STONE SHOULDER ( Controls 0.00 cfs) Pond 3: P-Pond Inflow Outflow Primary Secondary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Inflow Area=24,713 sf Peak Elev=813.54' Storage=715 cf 0.93 cfs 0.06 cfs 0.06 cfs 0.00 cfs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 30Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Pond 4: BYPASS SWALE Inflow Area = 50,064 sf, Inflow Depth = 0.47" for 10-Year event Inflow = 2.34 cfs @ 0.21 hrs, Volume= 1,969 cf Outflow = 2.31 cfs @ 0.23 hrs, Volume= 1,969 cf, Atten= 2%, Lag= 1.3 min Primary = 2.31 cfs @ 0.23 hrs, Volume= 1,969 cf Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Peak Elev= 814.97' @ 0.23 hrs Surf.Area= 256 sf Storage= 88 cf Plug-Flow detention time= 0.5 min calculated for 1,969 cf (100% of inflow) Center-of-Mass det. time= 0.5 min ( 11.6 - 11.1 ) Volume Invert Avail.Storage Storage Description #1 814.00' 1,009 cf Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 814.00 1 3.1 0 0 1 815.00 270 118.0 96 96 1,110 816.00 1,776 257.0 913 1,009 5,262 Device Routing Invert Outlet Devices #1 Primary 814.00'12.0" x 47.6' long 12" hdpe CPP, mitered to conform to fill, Ke= 0.700 Outlet Invert= 811.97' S= 0.0426 '/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior #2 Secondary 815.75'EARTH WEIR, C= 2.62 Head (feet) 0.00 0.25 Width (feet) 10.00 13.00 Primary OutFlow Max=2.31 cfs @ 0.23 hrs HW=814.97' TW=812.49' (Dynamic Tailwater) 1=12" hdpe (Inlet Controls 2.31 cfs @ 3.0 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=814.00' TW=0.00' (Dynamic Tailwater) 2=EARTH WEIR ( Controls 0.00 cfs) Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 31Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Pond 4: BYPASS SWALE Inflow Outflow Primary Secondary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)2 1 0 Inflow Area=50,064 sf Peak Elev=814.97' Storage=88 cf 2.34 cfs 2.31 cfs 2.31 cfs 0.00 cfs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 32Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Link 4L: Q100in * 1.25 Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Primary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow x 1.25, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Link 4L: Q100in * 1.25 Inflow Primary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 x 1.25 0.00 cfs 0.00 cfs Hamilton Co. Indiana 10-Year Duration=14 min, Inten=4.66 in/hr510 SubDiv Page 33Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Link 5L: OVERLAND TO THE NORTH Inflow Area = 60,250 sf, Inflow Depth = 0.38" for 10-Year event Inflow = 0.73 cfs @ 0.24 hrs, Volume= 1,910 cf Primary = 0.73 cfs @ 0.24 hrs, Volume= 1,910 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Link 5L: OVERLAND TO THE NORTH Inflow Primary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=60,250 sf 0.73 cfs 0.73 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 34Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Time span=0.00-24.00 hrs, dt=0.01 hrs, 2401 points x 3 Runoff by Rational method, Rise/Fall=1.0/1.0 xTc Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=60,250 sf Runoff Depth=0.57"Subcatchment SA 1: LOT 3 DIR TO WEST Flow Length=400' Tc=43.6 min C=0.35 Runoff=1.09 cfs 2,842 cf Runoff Area=11,313 sf Runoff Depth=0.57"Subcatchment SA 2: Lot 2 Flow Length=140' Tc=13.6 min C=0.35 Runoff=0.64 cfs 533 cf Runoff Area=21,900 sf Runoff Depth=0.57"Subcatchment SA 3: Offsite E Lots Flow Length=170' Tc=12.1 min C=0.35 Runoff=1.23 cfs 1,033 cf Runoff Area=13,400 sf Runoff Depth=0.57"Subcatchment SA 4: Lot 1 Flow Length=140' Tc=13.6 min C=0.35 Runoff=0.75 cfs 632 cf Runoff Area=28,164 sf Runoff Depth=0.81"Subcatchment SA 5: SOUTH OFFSITE Flow Length=380' Tc=6.0 min C=0.50 Runoff=2.26 cfs 1,898 cf Peak Depth=0.75' Max Vel=4.2 fps Inflow=3.23 cfs 4,097 cfReach 3R: 15" HDPE D=15.0" n=0.013 L=95.6' S=0.0054 '/' Capacity=4.76 cfs Outflow=3.22 cfs 4,097 cf Peak Depth=0.00' Max Vel=0.0 fps Inflow=0.00 cfs 0 cfReach 5R: overflow n=0.022 L=2.0' S=0.0750 '/' Capacity=61.24 cfs Outflow=0.00 cfs 0 cf Peak Depth=0.99' Max Vel=3.1 fps Inflow=3.22 cfs 4,097 cfReach 7R: 15" HDPE D=15.0" n=0.013 L=18.8' S=0.0027 '/' Capacity=3.33 cfs Outflow=3.22 cfs 4,097 cf Peak Elev=813.97' Storage=1,092 cf Inflow=1.39 cfs 1,165 cfPond 3: P-Pond Primary=0.07 cfs 1,165 cf Secondary=0.00 cfs 0 cf Outflow=0.07 cfs 1,165 cf Peak Elev=815.41' Storage=291 cf Inflow=3.49 cfs 2,931 cfPond 4: BYPASS SWALE Primary=3.18 cfs 2,931 cf Secondary=0.00 cfs 0 cf Outflow=3.18 cfs 2,931 cf x 1.25 Inflow=0.00 cfs 0 cfLink 4L: Q100in * 1.25 Primary=0.00 cfs 0 cf Inflow=1.09 cfs 2,842 cfLink 5L: OVERLAND TO THE NORTH Primary=1.09 cfs 2,842 cf Total Runoff Area = 135,027 sf Runoff Volume = 6,939 cf Average Runoff Depth = 0.62" Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 35Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 1: LOT 3 DIR TO WEST EXISTING 1.38 ACRE TRACT (LOT 3) THIS AREA DRAINS WEST INTO EXISTING LOW AT WOODLINE AND EVENTUALY NORTHWEST INTO RDE INLET OF NORTH ADJOINER PROPERTY. THIS WILL NOT BE INTERCEPTED OR TREATED AS THE EXISTING CONDITION DOES NOT DRAIN SOUTH AT ALL.. IS CONSIDERED BYPASSED [48] Hint: Peak<CiA due to short duration Runoff = 1.09 cfs @ 0.24 hrs, Volume= 2,842 cf, Depth= 0.57" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Area (sf) C Description 60,250 0.35 Single Family North Lot Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.7 100 0.0260 0.2 Sheet Flow, SHEET Grass: Short n= 0.150 P2= 2.66" 33.9 300 0.0260 0.1 Sheet Flow, Shallow Grass: Dense n= 0.240 P2= 2.66" 43.6 400 Total Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 36Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 1: LOT 3 DIR TO WEST Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Runoff Area=60,250 sf Runoff Volume=2,842 cf Runoff Depth=0.57" Flow Length=400' Tc=43.6 min C=0.35 1.09 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 37Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 2: Lot 2 Lot 2 Part of developed area, drainage controlled via underground detention basin w/ chambers and additional orifice control at downstream storm structure Runoff = 0.64 cfs @ 0.23 hrs, Volume= 533 cf, Depth= 0.57" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Area (sf) C Description 11,313 0.35 Single Family Lot 2 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.3 100 0.0300 0.1 Sheet Flow, SHEET Grass: Dense n= 0.240 P2= 2.66" 0.3 40 0.0300 2.6 Shallow Concentrated Flow, Shallow Grassed Waterway Kv= 15.0 fps 13.6 140 Total Subcatchment SA 2: Lot 2 Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Runoff Area=11,313 sf Runoff Volume=533 cf Runoff Depth=0.57" Flow Length=140' Tc=13.6 min C=0.35 0.64 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 38Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 3: Offsite E Lots Two Ex Family Lots to East < 10,000 sf THIS AREA WILL BE BYPASSED VIA SWALE INTO PROPOSED DRAINAGE SYSTEM, SEPERATE FOR OTHER DRAINAGE FEATURES. Runoff = 1.23 cfs @ 0.21 hrs, Volume= 1,033 cf, Depth= 0.57" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Area (sf) C Description 10,950 0.35 Single Family Home North Lot 10,950 0.35 Single Family Home South Lot 21,900 0.35 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 100 0.0410 0.1 Sheet Flow, Sheet Grass: Dense n= 0.240 P2= 2.66" 0.4 70 0.0410 3.3 Shallow Concentrated Flow, Shallow Unpaved Kv= 16.1 fps 12.1 170 Total Subcatchment SA 3: Offsite E Lots Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Runoff Area=21,900 sf Runoff Volume=1,033 cf Runoff Depth=0.57" Flow Length=170' Tc=12.1 min C=0.35 1.23 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 39Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 4: Lot 1 Lot 1 Part of developed area, drainage controlled via underground detention basin w/ chambers and additional orifice control at downstream storm structure Runoff = 0.75 cfs @ 0.23 hrs, Volume= 632 cf, Depth= 0.57" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Area (sf) C Description 13,400 0.35 Single Family Lot 1 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.3 100 0.0300 0.1 Sheet Flow, SHEET Grass: Dense n= 0.240 P2= 2.66" 0.3 40 0.0300 2.6 Shallow Concentrated Flow, SHALLOW Grassed Waterway Kv= 15.0 fps 13.6 140 Total Subcatchment SA 4: Lot 1 Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Runoff Area=13,400 sf Runoff Volume=632 cf Runoff Depth=0.57" Flow Length=140' Tc=13.6 min C=0.35 0.75 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 40Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 5: SOUTH OFFSITE AREAS SOUTH OFTHE 5TH STREET ALLEY THIS AREA WILL BE BYPASSED VIA SWALE INTO PROPOSED DRAINAGE SYSTEM, SEPERATE FOR OTHER DRAINAGE FEATURES. Runoff = 2.26 cfs @ 0.10 hrs, Volume= 1,898 cf, Depth= 0.81" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Area (sf) C Description 13,061 0.45 Single Family Lot west 11,660 0.45 Single Familt Lot east 3,443 0.85 ALLEY 5TH STREET NW 28,164 0.50 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.5 100 0.0158 1.1 Sheet Flow, SHEET Smooth surfaces n= 0.011 P2= 2.66" 1.8 280 0.0158 2.6 Shallow Concentrated Flow, SHALLOW Paved Kv= 20.3 fps 3.3 380 Total, Increased to minimum Tc = 6.0 min Subcatchment SA 5: SOUTH OFFSITE Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)2 1 0 Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Runoff Area=28,164 sf Runoff Volume=1,898 cf Runoff Depth=0.81" Flow Length=380' Tc=6.0 min C=0.50 2.26 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 41Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Reach 3R: 15" HDPE THIS IS A PAVEMENT SECTION CONSISTING OF A 2' CHAIRBACK CURB & 3% PAVMENT XSECTION APPROXIMATING THE PAVEMENT OF 5TH STREETNW [52] Hint: Inlet conditions not evaluated Inflow Area = 74,777 sf, Inflow Depth = 0.66" for 100-year event Inflow = 3.23 cfs @ 0.24 hrs, Volume= 4,097 cf Outflow = 3.22 cfs @ 0.25 hrs, Volume= 4,097 cf, Atten= 0%, Lag= 0.3 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Max. Velocity= 4.2 fps, Min. Travel Time= 0.4 min Avg. Velocity = 1.4 fps, Avg. Travel Time= 1.2 min Peak Depth= 0.75' @ 0.25 hrs Capacity at bank full= 4.76 cfs Inlet Invert= 811.87', Outlet Invert= 811.35' 15.0" Diameter Pipe, n= 0.013 Corrugated PE, smooth interior Length= 95.6' Slope= 0.0054 '/' Reach 3R: 15" HDPE Inflow Outflow Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)3 2 1 0 Inflow Area=74,777 sf Peak Depth=0.75' Max Vel=4.2 fps D=15.0" n=0.013 L=95.6' S=0.0054 '/' Capacity=4.76 cfs 3.23 cfs 3.22 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 42Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Reach 5R: overflow Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Outflow = 0.00 cfs @ 0.00 hrs, Volume= 0 cf, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Max. Velocity= 0.0 fps, Min. Travel Time= 0.0 min Avg. Velocity = 0.0 fps, Avg. Travel Time= 0.0 min Peak Depth= 0.00' @ 0.00 hrs Capacity at bank full= 61.24 cfs Inlet Invert= 815.75', Outlet Invert= 815.60' 10.00' x 0.50' deep channel, n= 0.022 Earth, clean & straight Side Slope Z-value= 3.0 '/' Top Width= 13.00' Length= 2.0' Slope= 0.0750 '/' Reach 5R: overflow Inflow Outflow Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Peak Depth=0.00' Max Vel=0.0 fps n=0.022 L=2.0' S=0.0750 '/' Capacity=61.24 cfs 0.00 cfs 0.00 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 43Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Reach 7R: 15" HDPE [52] Hint: Inlet conditions not evaluated [62] Warning: Submerged 30% of Reach 3R inlet Inflow Area = 74,777 sf, Inflow Depth = 0.66" for 100-year event Inflow = 3.22 cfs @ 0.25 hrs, Volume= 4,097 cf Outflow = 3.22 cfs @ 0.25 hrs, Volume= 4,097 cf, Atten= 0%, Lag= 0.1 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Max. Velocity= 3.1 fps, Min. Travel Time= 0.1 min Avg. Velocity = 1.1 fps, Avg. Travel Time= 0.3 min Peak Depth= 0.99' @ 0.25 hrs Capacity at bank full= 3.33 cfs Inlet Invert= 811.25', Outlet Invert= 811.20' 15.0" Diameter Pipe, n= 0.013 Corrugated PE, smooth interior Length= 18.8' Slope= 0.0027 '/' Reach 7R: 15" HDPE Inflow Outflow Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)3 2 1 0 Inflow Area=74,777 sf Peak Depth=0.99' Max Vel=3.1 fps D=15.0" n=0.013 L=18.8' S=0.0027 '/' Capacity=3.33 cfs 3.22 cfs 3.22 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 44Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Pond 3: P-Pond Stone basin with 5 - 24" CMP chanmbers (Contech Perf CMP or equivlent) 93 lf @ 0.01% Storage Required 1335.84 CF Storage Provided 1359 CF Peak 10yr = 813.72 Peak 100yr = 814.38 2.4" Orifice Controlled Required 10yr =0.06 CFS Required 100yr =0.17 CFS Provided 10yr = 0.06 CFS Provided 100yr = 0.07 CFS Inflow Area = 24,713 sf, Inflow Depth = 0.57" for 100-year event Inflow = 1.39 cfs @ 0.23 hrs, Volume= 1,165 cf Outflow = 0.07 cfs @ 0.45 hrs, Volume= 1,165 cf, Atten= 95%, Lag= 13.1 min Primary = 0.07 cfs @ 0.45 hrs, Volume= 1,165 cf Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Peak Elev= 813.97' @ 0.45 hrs Surf.Area= 2,280 sf Storage= 1,092 cf Plug-Flow detention time= 152.6 min calculated for 1,165 cf (100% of inflow) Center-of-Mass det. time= 152.7 min ( 166.5 - 13.8 ) Volume Invert Avail.Storage Storage Description #1 812.10' 29 cf UG STONE BASIN (Irregular) Listed below (Recalc) 8,801 cf Overall - 1,461 cf Embedded = 7,340 cf x 0.4% Voids #2 812.10' 1,461 cf 24.0"D x 93.00'L 24" SSD CONTECH OR EQUIV. S= 0.0100 '/' x 5 Inside #1 1,490 cf Total Available Storage Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 812.10 2,280 238.0 0 0 2,280 813.61 2,280 238.0 3,443 3,443 2,639 815.96 2,280 238.0 5,358 8,801 3,199 Device Routing Invert Outlet Devices #1 Primary 812.00'2.0" x 28.0' long 12" HDPE / ORFICE CNTL CPP, square edge headwall, Ke= 0.500 Outlet Invert= 811.97' S= 0.0011 '/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior #2 Secondary 816.96'E. EDGE OF STONE SHOULDER, C= 2.62 Head (feet) 0.00 0.10 Width (feet) 95.00 100.00 Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 45Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Primary OutFlow Max=0.07 cfs @ 0.45 hrs HW=813.97' TW=811.99' (Dynamic Tailwater) 1=12" HDPE / ORFICE CNTL (Barrel Controls 0.07 cfs @ 3.3 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=812.10' TW=814.00' (Dynamic Tailwater) 2=E. EDGE OF STONE SHOULDER ( Controls 0.00 cfs) Pond 3: P-Pond Inflow Outflow Primary Secondary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Inflow Area=24,713 sf Peak Elev=813.97' Storage=1,092 cf 1.39 cfs 0.07 cfs 0.07 cfs 0.00 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 46Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Pond 4: BYPASS SWALE Inflow Area = 50,064 sf, Inflow Depth = 0.70" for 100-year event Inflow = 3.49 cfs @ 0.21 hrs, Volume= 2,931 cf Outflow = 3.18 cfs @ 0.24 hrs, Volume= 2,931 cf, Atten= 9%, Lag= 2.0 min Primary = 3.18 cfs @ 0.24 hrs, Volume= 2,931 cf Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Peak Elev= 815.41' @ 0.24 hrs Surf.Area= 724 sf Storage= 291 cf Plug-Flow detention time= 1.0 min calculated for 2,930 cf (100% of inflow) Center-of-Mass det. time= 1.0 min ( 12.1 - 11.1 ) Volume Invert Avail.Storage Storage Description #1 814.00' 1,009 cf Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 814.00 1 3.1 0 0 1 815.00 270 118.0 96 96 1,110 816.00 1,776 257.0 913 1,009 5,262 Device Routing Invert Outlet Devices #1 Primary 814.00'12.0" x 47.6' long 12" hdpe CPP, mitered to conform to fill, Ke= 0.700 Outlet Invert= 811.97' S= 0.0426 '/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior #2 Secondary 815.75'EARTH WEIR, C= 2.62 Head (feet) 0.00 0.25 Width (feet) 10.00 13.00 Primary OutFlow Max=3.18 cfs @ 0.24 hrs HW=815.41' TW=812.62' (Dynamic Tailwater) 1=12" hdpe (Inlet Controls 3.18 cfs @ 4.0 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=814.00' TW=0.00' (Dynamic Tailwater) 2=EARTH WEIR ( Controls 0.00 cfs) Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 47Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Pond 4: BYPASS SWALE Inflow Outflow Primary Secondary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)3 2 1 0 Inflow Area=50,064 sf Peak Elev=815.41' Storage=291 cf 3.49 cfs 3.18 cfs 3.18 cfs 0.00 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 48Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Link 4L: Q100in * 1.25 Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Primary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow x 1.25, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Link 4L: Q100in * 1.25 Inflow Primary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 x 1.25 0.00 cfs 0.00 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 49Prepared by JD HALL LAND SURVEYING 5/20/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Link 5L: OVERLAND TO THE NORTH Inflow Area = 60,250 sf, Inflow Depth = 0.57" for 100-year event Inflow = 1.09 cfs @ 0.24 hrs, Volume= 2,842 cf Primary = 1.09 cfs @ 0.24 hrs, Volume= 2,842 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Link 5L: OVERLAND TO THE NORTH Inflow Primary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Inflow Area=60,250 sf 1.09 cfs 1.09 cfs Drainage Diagram for 510 SubDiv Prepared by JD HALL LAND SURVEYING 4/7/2024 HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcat Reach Pond Link SA 1 LOT 3 DIR TO WEST SA 2 Lot 2 SA 3 Offsite E Lots SA 4 Lot 1 SA 5 SOUTH OFFSITE 5R overflow 3 P-Pond 4 BYPASS SWALE 4L Q100in * 1.25 5L OVERLAND TO THE NORTH Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 2Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Time span=0.00-24.00 hrs, dt=0.01 hrs, 2401 points x 3 Runoff by Rational method, Rise/Fall=1.0/1.0 xTc Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=60,250 sf Runoff Depth=0.57"Subcatchment SA 1: LOT 3 DIR TO WEST Flow Length=400' Tc=43.6 min C=0.35 Runoff=1.09 cfs 2,842 cf Runoff Area=11,313 sf Runoff Depth=0.57"Subcatchment SA 2: Lot 2 Flow Length=140' Tc=13.6 min C=0.35 Runoff=0.64 cfs 533 cf Runoff Area=21,900 sf Runoff Depth=0.73"Subcatchment SA 3: Offsite E Lots Flow Length=170' Tc=12.1 min C=0.45 Runoff=1.58 cfs 1,328 cf Runoff Area=13,400 sf Runoff Depth=0.57"Subcatchment SA 4: Lot 1 Flow Length=140' Tc=13.6 min C=0.35 Runoff=0.75 cfs 632 cf Runoff Area=28,164 sf Runoff Depth=0.81"Subcatchment SA 5: SOUTH OFFSITE Flow Length=380' Tc=6.0 min C=0.50 Runoff=2.26 cfs 1,898 cf Peak Depth=0.10' Max Vel=4.0 fps Inflow=4.21 cfs 4,456 cfReach 5R: overflow n=0.022 L=2.0' S=0.0750 '/' Capacity=61.24 cfs Outflow=4.21 cfs 4,456 cf Peak Elev=814.06' Storage=1,165 cf Inflow=1.39 cfs 1,165 cfPond 3: P-Pond Primary=0.01 cfs 338 cf Secondary=0.00 cfs 0 cf Outflow=0.01 cfs 26 cf Peak Elev=815.52' Storage=381 cf Inflow=3.84 cfs 3,565 cfPond 4: BYPASS SWALE Primary=3.37 cfs 3,564 cf Secondary=0.00 cfs 0 cf Outflow=3.37 cfs 3,564 cf x 1.25 Inflow=3.37 cfs 3,564 cfLink 4L: Q100in * 1.25 Primary=4.21 cfs 4,456 cf Inflow=5.29 cfs 7,298 cfLink 5L: OVERLAND TO THE NORTH Primary=5.29 cfs 7,298 cf Total Runoff Area = 135,027 sf Runoff Volume = 7,234 cf Average Runoff Depth = 0.64" Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 3Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 1: LOT 3 DIR TO WEST EXISTING 1.38 ACRE TRACT (LOT 3) THIS AREA DRAINS WEST INTO EXISTING LOW AT WOODLINE AND EVENTUALY NORTHWEST INTO RDE INLET OF NORTH ADJOINER PROPERTY. THIS WILL NOT BE INTERCEPTED OR TREATED AS THE EXISTING CONDITION DOES NOT DRAIN SOUTH AT ALL.. IS CONSIDERED BYPASSED [48] Hint: Peak<CiA due to short duration Runoff = 1.09 cfs @ 0.24 hrs, Volume= 2,842 cf, Depth= 0.57" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Area (sf) C Description 60,250 0.35 Single Family North Lot Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.7 100 0.0260 0.2 Sheet Flow, SHEET Grass: Short n= 0.150 P2= 2.66" 33.9 300 0.0260 0.1 Sheet Flow, Shallow Grass: Dense n= 0.240 P2= 2.66" 43.6 400 Total Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 4Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 1: LOT 3 DIR TO WEST Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Runoff Area=60,250 sf Runoff Volume=2,842 cf Runoff Depth=0.57" Flow Length=400' Tc=43.6 min C=0.35 1.09 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 5Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 2: Lot 2 Lot 2 Part of developed area, drainage controlled via underground detention basin w/ chambers and additional orifice control at downstream storm structure Runoff = 0.64 cfs @ 0.23 hrs, Volume= 533 cf, Depth= 0.57" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Area (sf) C Description 11,313 0.35 Single Family Lot 2 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.3 100 0.0300 0.1 Sheet Flow, SHEET Grass: Dense n= 0.240 P2= 2.66" 0.3 40 0.0300 2.6 Shallow Concentrated Flow, Shallow Grassed Waterway Kv= 15.0 fps 13.6 140 Total Subcatchment SA 2: Lot 2 Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Runoff Area=11,313 sf Runoff Volume=533 cf Runoff Depth=0.57" Flow Length=140' Tc=13.6 min C=0.35 0.64 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 6Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 3: Offsite E Lots Two Ex Family Lots to East < 10,000 sf THIS AREA WILL BE BYPASSED VIA SWALE INTO PROPOSED DRAINAGE SYSTEM, SEPERATE FOR OTHER DRAINAGE FEATURES. Runoff = 1.58 cfs @ 0.21 hrs, Volume= 1,328 cf, Depth= 0.73" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Area (sf) C Description 10,950 0.45 Single Family Home North Lot 10,950 0.45 Single Family Home South Lot 21,900 0.45 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 11.7 100 0.0410 0.1 Sheet Flow, Sheet Grass: Dense n= 0.240 P2= 2.66" 0.4 70 0.0410 3.3 Shallow Concentrated Flow, Shallow Unpaved Kv= 16.1 fps 12.1 170 Total Subcatchment SA 3: Offsite E Lots Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Runoff Area=21,900 sf Runoff Volume=1,328 cf Runoff Depth=0.73" Flow Length=170' Tc=12.1 min C=0.45 1.58 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 7Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 4: Lot 1 Lot 1 Part of developed area, drainage controlled via underground detention basin w/ chambers and additional orifice control at downstream storm structure Runoff = 0.75 cfs @ 0.23 hrs, Volume= 632 cf, Depth= 0.57" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Area (sf) C Description 13,400 0.35 Single Family Lot 1 Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 13.3 100 0.0300 0.1 Sheet Flow, SHEET Grass: Dense n= 0.240 P2= 2.66" 0.3 40 0.0300 2.6 Shallow Concentrated Flow, SHALLOW Grassed Waterway Kv= 15.0 fps 13.6 140 Total Subcatchment SA 4: Lot 1 Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)0.8 0.75 0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Runoff Area=13,400 sf Runoff Volume=632 cf Runoff Depth=0.57" Flow Length=140' Tc=13.6 min C=0.35 0.75 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 8Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Subcatchment SA 5: SOUTH OFFSITE AREAS SOUTH OFTHE 5TH STREET ALLEY THIS AREA WILL BE BYPASSED VIA SWALE INTO PROPOSED DRAINAGE SYSTEM, SEPERATE FOR OTHER DRAINAGE FEATURES. Runoff = 2.26 cfs @ 0.10 hrs, Volume= 1,898 cf, Depth= 0.81" Runoff by Rational method, Rise/Fall=1.0/1.0 xTc, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Area (sf) C Description 13,061 0.45 Single Family Lot west 11,660 0.45 Single Familt Lot east 3,443 0.85 ALLEY 5TH STREET NW 28,164 0.50 Weighted Average Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 1.5 100 0.0158 1.1 Sheet Flow, SHEET Smooth surfaces n= 0.011 P2= 2.66" 1.8 280 0.0158 2.6 Shallow Concentrated Flow, SHALLOW Paved Kv= 20.3 fps 3.3 380 Total, Increased to minimum Tc = 6.0 min Subcatchment SA 5: SOUTH OFFSITE Runoff Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)2 1 0 Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr Runoff Area=28,164 sf Runoff Volume=1,898 cf Runoff Depth=0.81" Flow Length=380' Tc=6.0 min C=0.50 2.26 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 9Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Reach 5R: overflow [87] Warning: Oscillations may require Finer Routing or smaller dt Inflow Area = 74,777 sf, Inflow Depth > 0.72" for 100-year event Inflow = 4.21 cfs @ 0.25 hrs, Volume= 4,456 cf Outflow = 4.21 cfs @ 0.25 hrs, Volume= 4,456 cf, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Max. Velocity= 4.0 fps, Min. Travel Time= 0.0 min Avg. Velocity = 0.6 fps, Avg. Travel Time= 0.1 min Peak Depth= 0.10' @ 0.25 hrs Capacity at bank full= 61.24 cfs Inlet Invert= 815.75', Outlet Invert= 815.60' 10.00' x 0.50' deep channel, n= 0.022 Earth, clean & straight Side Slope Z-value= 3.0 '/' Top Width= 13.00' Length= 2.0' Slope= 0.0750 '/' Reach 5R: overflow Inflow Outflow Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)4 3 2 1 0 Inflow Area=74,777 sf Peak Depth=0.10' Max Vel=4.0 fps n=0.022 L=2.0' S=0.0750 '/' Capacity=61.24 cfs 4.21 cfs 4.21 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 10Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Pond 3: P-Pond Stone basin with 5 - 24" CMP chanmbers (Contech Perf CMP or equivlent) 93 lf @ 0.01% Storage Required 1335.84 CF Storage Provided 1359 CF Peak 10yr = 813.72 Peak 100yr = 814.38 2.4" Orifice Controlled Required 10yr =0.06 CFS Required 100yr =0.17 CFS Provided 10yr = 0.06 CFS Provided 100yr = 0.07 CFS [87] Warning: Oscillations may require Finer Routing or smaller dt Inflow Area = 24,713 sf, Inflow Depth = 0.57" for 100-year event Inflow = 1.39 cfs @ 0.23 hrs, Volume= 1,165 cf Outflow = 0.01 cfs @ 0.45 hrs, Volume= 26 cf, Atten= 100%, Lag= 13.4 min Primary = 0.01 cfs @ 0.45 hrs, Volume= 338 cf Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Peak Elev= 814.06' @ 0.46 hrs Surf.Area= 2,280 sf Storage= 1,165 cf Plug-Flow detention time= 69.2 min calculated for 26 cf (2% of inflow) Center-of-Mass det. time= 57.4 min ( 71.2 - 13.8 ) Volume Invert Avail.Storage Storage Description #1 812.10' 29 cf UG STONE BASIN (Irregular) Listed below (Recalc) 8,801 cf Overall - 1,461 cf Embedded = 7,340 cf x 0.4% Voids #2 812.10' 1,461 cf 24.0"D x 93.00'L 24" SSD CONTECH OR EQUIV. S= 0.0100 '/' x 5 Inside #1 1,490 cf Total Available Storage Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 812.10 2,280 238.0 0 0 2,280 813.61 2,280 238.0 3,443 3,443 2,639 815.96 2,280 238.0 5,358 8,801 3,199 Device Routing Invert Outlet Devices #1 Primary 812.00'2.4" x 122.0' long 8" HDPE / ORFICE CNTL CPP, square edge headwall, Ke= 0.500 Outlet Invert= 811.71' S= 0.0024 '/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior #2 Secondary 816.96'E. EDGE OF STONE SHOULDER, C= 2.62 Head (feet) 0.00 0.10 Width (feet) 95.00 100.00 Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 11Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Primary OutFlow Max=0.01 cfs @ 0.45 hrs HW=814.06' TW=814.04' (Dynamic Tailwater) 1=8" HDPE / ORFICE CNTL (Outlet Controls 0.01 cfs @ 0.2 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=812.10' TW=814.00' (Dynamic Tailwater) 2=E. EDGE OF STONE SHOULDER ( Controls 0.00 cfs) Pond 3: P-Pond Inflow Outflow Primary Secondary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)1 0 Inflow Area=24,713 sf Peak Elev=814.06' Storage=1,165 cf 1.39 cfs 0.01 cfs 0.01 cfs 0.00 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 12Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Pond 4: BYPASS SWALE [80] Warning: Exceeded Pond 3 by 2.32' @ 0.12 hrs (0.07 cfs 308 cf) Inflow Area = 74,777 sf, Inflow Depth > 0.57" for 100-year event Inflow = 3.84 cfs @ 0.21 hrs, Volume= 3,565 cf Outflow = 3.37 cfs @ 0.25 hrs, Volume= 3,564 cf, Atten= 12%, Lag= 2.3 min Primary = 3.37 cfs @ 0.25 hrs, Volume= 3,564 cf Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Routing by Dyn-Stor-Ind method, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs / 3 Peak Elev= 815.52' @ 0.25 hrs Surf.Area= 887 sf Storage= 381 cf Plug-Flow detention time= 1.1 min calculated for 3,564 cf (100% of inflow) Center-of-Mass det. time= 1.1 min ( 80.6 - 79.5 ) Volume Invert Avail.Storage Storage Description #1 814.00' 1,009 cf Custom Stage Data (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 814.00 1 3.1 0 0 1 815.00 270 118.0 96 96 1,110 816.00 1,776 257.0 913 1,009 5,262 Device Routing Invert Outlet Devices #1 Primary 814.00'12.0" x 47.6' long 12" ADS CPP, mitered to conform to fill, Ke= 0.700 Outlet Invert= 813.24' S= 0.0160 '/' Cc= 0.900 n= 0.013 Corrugated PE, smooth interior #2 Secondary 815.75'EARTH WEIR, C= 2.62 Head (feet) 0.00 0.25 Width (feet) 10.00 13.00 Primary OutFlow Max=3.37 cfs @ 0.25 hrs HW=815.52' TW=0.00' (Dynamic Tailwater) 1=12" ADS (Inlet Controls 3.37 cfs @ 4.3 fps) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=814.00' TW=0.00' (Dynamic Tailwater) 2=EARTH WEIR ( Controls 0.00 cfs) Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 13Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Pond 4: BYPASS SWALE Inflow Outflow Primary Secondary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)4 3 2 1 0 Inflow Area=74,777 sf Peak Elev=815.52' Storage=381 cf 3.84 cfs 3.37 cfs 3.37 cfs 0.00 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 14Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Link 4L: Q100in * 1.25 Inflow Area = 74,777 sf, Inflow Depth > 0.57" for 100-year event Inflow = 3.37 cfs @ 0.25 hrs, Volume= 3,564 cf Primary = 4.21 cfs @ 0.25 hrs, Volume= 4,456 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow x 1.25, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Link 4L: Q100in * 1.25 Inflow Primary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)4 3 2 1 0 Inflow Area=74,777 sf x 1.253.37 cfs 4.21 cfs Hamilton Co. Indiana 100-year Duration=14 min, Inten=6.93 in/hr510 SubDiv Page 15Prepared by JD HALL LAND SURVEYING 4/7/2024HydroCAD® 7.10 s/n 002668 © 2005 HydroCAD Software Solutions LLC Link 5L: OVERLAND TO THE NORTH Inflow Area = 135,027 sf, Inflow Depth > 0.65" for 100-year event Inflow = 5.29 cfs @ 0.25 hrs, Volume= 7,298 cf Primary = 5.29 cfs @ 0.25 hrs, Volume= 7,298 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-24.00 hrs, dt= 0.01 hrs Link 5L: OVERLAND TO THE NORTH Inflow Primary Hydrograph Time (hours) 2423222120191817161514131211109876543210Flow (cfs)5 4 3 2 1 0 Inflow Area=135,027 sf 5.29 cfs 5.29 cfs 0 25 50 75 100 125 150 175 808.00 812.00 816.00 820.00 824.00 828.00 15 CPP Rim: 819.72 (ft) Up Inv: 811.25 (ft) Dn Inv: 811.20 (ft) Len: 18.80 (ft) 15 (in) 15 CPP Rim: 817.01 (ft) Up Inv: 811.87 (ft) Dn Inv: 811.35 (ft) Len: 95.60 (ft) 15 (in) 12 CPP Rim: 815.00 (ft) Up Inv: 814.00 (ft) Dn Inv: 811.97 (ft) Len: 47.60 (ft) 12 (in) Reach (ft) Elev. (ft) Proj. file: NEW PIPES.stm Hydraflow Storm Sewers 2003 Storm Sewer Profile 100YR DESIGN STR #1 4' MH STR #2 4' MH END SEC W/ TRACH QUARD Hydraflow Plan View Project file: NEW PIPES.stm No. Lines: 3 05-20-2024 Hydraflow Storm Sewers 2003 Storm Sewer Inventory Report Page 1 Line Alignment Flow Data Physical Data Line ID No. Dnstr Line Defl Junc Known Drng Runoff Inlet Invert Line Invert Line Line N J-loss Inlet/ line length angle type Q area coeff time El Dn slope El Up size type value coeff Rim El No. (ft) (deg) (cfs) (ac) (C) (min) (ft) (%) (ft) (in) (n) (K) (ft) 1 End 18.8 -90.5 MH 0.00 0.00 0.00 0.0 811.20 0.27 811.25 15 Cir 0.013 1.00 819.72 15 CPP 2 1 95.6 90.5 Grate 0.00 0.00 0.00 0.0 811.35 0.54 811.87 15 Cir 0.013 1.10 817.01 15 CPP 3 2 47.6 -45.0 None 4.02 0.00 0.00 0.0 811.97 4.26 814.00 12 Cir 0.013 1.00 815.00 12 CPP Project File: NEW PIPES.stm Number of lines: 3 Date: 05-20-2024 Hydraflow Storm Sewers 2003 Q100in * 1.25 FROM HYDROCAD Storm Sewer Summary Report Page 1 Line Line ID Flow Line Line Invert Invert Line HGL HGL Minor Dns No. rate size length EL Dn EL Up slope down up loss line (cfs) (in) (ft) (ft) (ft) (%) (ft) (ft) (ft) No. 1 15 CPP 4.02 15 c 18.8 811.20 811.25 0.266 812.05 812.23 0.24 End 2 15 CPP 4.02 15 c 95.6 811.35 811.87 0.544 812.46 812.78 0.30 1 3 12 CPP 4.02 12 c 47.6 811.97 814.00 4.265 813.08 814.85 0.49 2 Project File: NEW PIPES.stm Number of lines: 3 Run Date: 05-20-2024 NOTES: c = circular; e = elliptical; b = box; Return period = 100 Yrs.; * Indicates surcharge condition. Hydraflow Storm Sewers 2003 Storm Sewer Tabulation Page 1 Station Len Drng Area Rnoff Area x C Tc Rain Total Cap Vel Pipe Invert Elev HGL Elev Grnd / Rim Elev Line ID coeff (I) flow full Line To Incr Total Incr Total Inlet Syst Size Slope Up Dn Up Dn Up Dn Line (ft) (ac) (ac) (C) (min) (min) (in/hr) (cfs) (cfs) (ft/s) (in) (%) (ft) (ft) (ft) (ft) (ft) (ft) 1 End 18.8 0.00 0.00 0.00 0.00 0.00 0.0 0.6 0.0 4.02 3.33 4.22 15 0.27 811.25 811.20 812.23 812.05 819.72 819.39 15 CPP 2 1 95.6 0.00 0.00 0.00 0.00 0.00 0.0 0.2 0.0 4.02 4.76 3.83 15 0.54 811.87 811.35 812.78 812.46 817.01 819.72 15 CPP 3 2 47.6 0.00 0.00 0.00 0.00 0.00 0.0 0.0 0.0 4.02 7.35 5.38 12 4.26 814.00 811.97 814.85 813.08 815.00 817.01 12 CPP Project File: NEW PIPES.stm Number of lines: 3 Run Date: 05-20-2024 NOTES: Intensity = 463.38 / (Inlet time + 28.00) ^ 1.12; Return period = 100 Yrs. Hydraflow Storm Sewers 2003 Inlet Report Page 1 Line Inlet ID Q = Q Q Q Junc Curb Inlet Grate Inlet Gutter Inlet Byp No CIA carry capt byp type line Ht L area L W So W Sw Sx n depth spread depth spread Dep No (cfs) (cfs) (cfs) (cfs) (in) (ft) (sqft) (ft) (ft) (ft/ft) (ft) (ft/ft) (ft/ft) (ft) (ft) (ft) (ft) (in) 1 0.00 0.00 0.00 0.00 MH 6.0 4.00 3.00 4.00 2.00 Sag 2.00 0.100 0.030 0.013 0.00 0.00 0.00 0.00 0.00 Off 2 0.00 4.02 4.02 0.00 Grate 6.0 4.00 3.00 4.00 2.00 Sag 2.00 0.100 0.030 0.013 0.30 5.46 0.30 5.46 0.00 1 3 4.02* 0.00 0.00 4.02 None 6.0 4.00 3.00 4.00 2.00 Sag 2.00 0.100 0.030 0.013 0.00 0.00 0.00 0.00 0.00 2 Project File: NEW PIPES.stm I-D-F File: HAMCO.IDF Number of lines: 3 Run Date: 05-20-2024 NOTES: Inlet N-Values = 0.016 ; Intensity = 463.38 / (Inlet time + 28.00) ^ 1.12; Return period = 100 Yrs. ; * Indicates Known Q added Hydraflow Storm Sewers 2003 Hydraulic Grade Line Computations Page 1 Line Size Q Downstream Len Upstream Check JL Minor coeff loss Invert HGL Depth Area Vel Vel EGL Sf Invert HGL Depth Area Vel Vel EGL Sf Ave Enrgy elev elev head elev elev elev head elev Sf loss (in) (cfs) (ft) (ft) (ft) (sqft) (ft/s) (ft) (ft) (%) (ft) (ft) (ft) (ft) (sqft) (ft/s) (ft) (ft) (%) (%) (ft) (K) (ft) (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17) (18) (19) (20) (21) (22) (23) (24) 1 15 4.02 811.20 812.05 0.85 0.89 4.52 0.32 812.37 0.597 18.8 811.25 812.23 0.98 1.03 3.91 0.24 812.46 0.425 0.511 0.096 1.00 0.24 2 15 4.02 811.35 812.46 1.11 1.16 3.48 0.19 812.65 0.344 95.6 811.87 812.78 0.91 0.96 4.19 0.27 813.06 0.497 0.421 0.402 1.10 0.30 3 12 4.02 811.97 813.08 1.00 0.79 5.12 0.41 813.49 1.275 47.6 814.00 814.85 0.85** 0.71 5.64 0.49 815.35 1.197 1.236 n/a 1.00 0.49 Project File: NEW PIPES.stm Number of lines: 3 Run Date: 05-20-2024 NOTES: * Normal depth assumed., ** Critical depth assumed. Hydraflow Storm Sewers 2003 Hydraflow HGL Computation Procedure Page 1 General Procedure: Hydraflow computes the HGL using the Bernoulli energy equation. Manning's equation is used to determine energy losses due to pipe friction. In a standard step, iterative procedure, Hydraflow assumes upstream HGLs until the energy equation balances. If the energy equation cannot balance, supercritical flow exists and critical depth is assumed at the upstream end. Col. 1 The line number being computed. Calculations begin at Line 1 and proceed upstream. Col. 2 The line size. In the case of non-circular pipes, the line rise is printed above the span. Col. 3 Total flow rate in the line. Col. 4 The elevation of the downstream invert. Col. 5 Elevation of the hydraulic grade line at the downstream end. This is computed as the upstream HGL + Minor loss of this line's downstream line. Col. 6 The downstream depth of flow inside the pipe (HGL - Invert elevation) but not greater than the line size. Col. 7 Cross-sectional area of the flow at the downstream end. Col. 8 The velocity of the flow at the downstream end, (Col. 3 / Col. 7). Col. 9 Velocity head (Velocity squared / 2g). Col. 10 The elevation of the energy grade line at the downstream end, HGL + Velocity head, (Col. 5 + Col. 9). Col. 11 The friction slope at the downstream end (the S or Slope term in Manning's equation). Col. 12 The line length. Col. 13 The elevation of the upstream invert. Col. 14 Elevation of the hydraulic grade line at the upstream end. Col. 15 The upstream depth of flow inside the pipe (HGL - Invert elevation) but not greater than the line size. Col. 16 Cross-sectional area of the flow at the upstream end. Col. 17 The velocity of the flow at the upstream end, (Col. 3 / Col. 16). Col. 18 Velocity head (Velocity squared / 2g). Col. 19 The elevation of the energy grade line at the upstream end, HGL + Velocity head, (Col. 14 + Col. 18) . Col. 20 The friction slope at the upstream end (the S or Slope term in Manning's equation). Col. 21 The average of the downstream and upstream friction slopes. Col. 22 Energy loss. Average Sf/100 x Line Length (Col. 21/100 x Col. 12). Equals (EGL upstream - EGL downstream) +/- tolerance. Col. 23 The junction loss coefficient (K). Col. 24 Minor loss. (Col. 23 x Col. 18). Is added to upstream HGL and used as the starting HGL for the next upstream line(s).