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Closing Documents Illinois Street Reconstruction Project Description 2010City of Carmel Illinois Street Reconstruction from Spring Mill Rd to 106th St Description of Proposed Project 1. GENERAL The proposed project is located in the City of Carmel in Hamilton County, Clay Township, Township 17 North, Range 3 East, within Sections 2, 10 and I I . (See Location Map) The proposed project includes the reconstruction of approximately 0.75 miles of Illinois Street beginning at Spring Mill Road and heading northeast to 106th Street. As part of the reconstruction 0.2 miles of Illinois Street will be realigned to intersect 106th Street approximately 400 feet west of its current location. Roundabouts will be constructed throughout the project at the intersections of Spring Mill Rd, Superior Street/I03"1 Street and 106th Street. Funding for this project is currently being pursued through the Indianapolis Metropolitan Planning Organization for a combination of 20% local funding and 80% federal aid funding. II. EXISTING FACILITY Illinois Street is a two lane boulevard with approximately 26 feet of pavement on either side of a variable width median. In several locations throughout the project the median width is reduced to provide for a left turn lane. The posted speed limit is 30 mph. The intersection at Spring Mill Road is a "T" configuration with Illinois St being stop controlled. There are dedicated left and right turn lanes from Illinois St to Spring Mill Rd and one receiving lane from Spring Mill Rd to Illinois St. There are no turn lanes provided along Spring Mill Rd. A 330 foot diameter traffic circle is located at the center of the project for the intersection of Illinois St, 103rd St and Superior St. Revised pavement markings were recently placed at this intersection to encourage standard roundabout operation. However the approaches remain unchanged. Despite the improvements, this traffic circle does not provide optimal operation and performance. The intersection at 106th Street is a "T" configuration with Illinois St being stop controlled. The northbound approach consists of a dedicated right turning roadway and a shared through/left lane. The eastbound and westbound approaches consist of two dedicated through lanes with short dedicated right and left turn lanes. The eastbound approach of the 106th/US 31 intersection has a right turn lane which is continuous back to the Illinois St Intersection. UNITED CONSULTING 06/10/10 Page I of 8 IIL DRAINAGE Based on contours obtained from the Hamilton County GIS site and observations from a field investigation, it appears that the storm water runoff is divided into two general drainage areas, one north of the traffic circle and the other south. Drainage from the northern area is collected and outlet into the detention pond located just west of the existing Illinois St alignment. The pond has an overflow structure located in the northwest corner with an outlet located in the shallow channel on the south side of 106th St. This channel flows west along 106th St for 400 feet before joining the UNT of Williams Creek. Approximately 200 feet of Illinois St., at the north end of the project, outlets directly into the shallow channel on the south side of the 106th St rather than the detention pond. Similar drainage features exist on the southern half of the project with the majority of the site draining to the southern detention pond. This pond outlets into the northeast quadrant of Spring Mill Rd and Illinois St. Where it follows a small meandering channel for nearly 550 feet to an estimated 48" culvert under Spring Mill Rd and continues west before its outfall into Williams Creek. Runoff from the intersection of Spring Mill Rd and Illinois St flows directly into the adjacent quadrants through storm inlets and shoulder runoff. An existing 18 foot long small structure spans the UNT of Williams Creek as it crosses underneath 106th St approximately 550 feet west of the current intersection of Illinois St and 1061h St. The UNT of Williams Creek does not have a published FIS profile; however, the study for Williams Creek indicates the QI00 flood elevation does not overtop 106th Street at its intersection with Williams Creek. IV. UTILITIES There are overhead utilities along the east side of Spring Mill Rd including electric, cable and telephone. Utility vaults are located in both the NE and SE quadrants at the intersection with Spring Mill Rd. An electric vault is located on the south side of Illinois St approximately 200' east of Spring Mill Rd. A water main is located along Illinois St. with fire hydrants located on both sides of the roadway. It is assumed a sanitary line is also located throughout the project, although sanitary manholes where not noted during the field investigation. A petroleum line crosses through the project, running east -west along the south side of 103`d St. A large electrical cabinet is located in the northeast corner of the traffic circle. The geometries of the proposed center roundabout will be designed to avoid impacts to this cabinet. There are several additional utility cabinets located along the east side of Illinois St north of the traffic circle. Finally, at the north end of the project, at 106th St, there are overhead utilities including electric, cable and telephone. A water main runs parallel with 106th St on the north side, as well as a potential communications duct bank. South of 106'h St a gas main was identified, as well as an existing sanitary sewer line. Several utilities will require relocation due to the proposed improvements. It appears most of the existing facilities are within the existing public right-of-way, and would therefore, not be a reimbursable utility. The right-of-way engineering would reveal if any easements exist. Early and continued utility coordination will be critical to the success of this project and will follow Title 105, Article 13 of the Indiana Administrative Code. UNITED CONSULTING 06//0/10 Page 2 of 8 V. SURVEY LIMITS UNITED will provide a topographic survey for design purposes. See the enclosed Design Survey Scope of Work document for additional information and proposed limits. VL GEOTECHNICAL EVALUATION A Geotechnical Evaluation will be completed to determine the subsurface conditions and assess the impacts of these conditions on the proposed construction. VH. ENVIRONMENTAL INVESTIGATION a. Environmental Documentation: Due to construction being partially funded by federal dollars, the completion of an environmental document will be required. Based on the most recent INDOT procedural changes to the environmental process, it is anticipated that this project may be completed as a Categorical Exclusion, Level 3. The Categorical Exclusion, Level 3 will fully evaluate the environmental impacts for the preferred alternative. The completion of this documentation will be coordinated with the [NDOT, Greenfield District, Environmental Scoping Manager and the Office of Environmental Services. b. Threatened and Endangered Species: The proposed project is within the range of the federally endangered Indiana bat (Myosis sodalist). The United States Fish and Wildlife Service will be consulted to determine the effect of this project on the federally endangered Indiana bat (Myosis sodalist). c. Wildlife Habitat: The preferred alternative will impact the UNT of Williams Creek and a branch of the UNT of Williams Creek along the south side of 106th St. Any new and/or replacement structures in the project corridor must not create conditions that are less than favorable for wildlife passage under the structure compared to current conditions. When feasible, a larger bridge or culvert opening should be used to allow for the movement of wildlife under the roadway in order to minimize collisions between wildlife and vehicles. A biological assessment will be conducted that describes the characteristics of each habitat community, including the representative flora and fauna species, identified within the project corridor. Amphibians, reptiles, birds, small and large mammals, aquatic organisms, and terrestrial and aquatic vegetation should all be included in the biological assessment. d Section 4(/) Resources: No section 4(O resources were identified within or near the project limits. e. Air Quality Analysis: A conformity determination is required prior to approval of any NEPA decision for projects in non -attainment and maintenance areas. Hamilton County is currently considered non - attainment for Ozone (03) and PM2.5. For projects in Metropolitan Planning Organization UNITED CONSULTING 06/10/10 Page 3 of 8 (MPO) areas, including this project, the project's design, concept, and scope will be confirmed that it is accurately reflected in the current Long Range Transportation Plan (TP) and Transportation Improvement Program (TIP) and both have been found to conform to the Indiana State Transportation Implementation Program (INSTIP). . f. Wetland and Stream Impacts: The National Wetland Inventory Map did not identify any wetlands within the proposed project limits. A "Waters of the US" (wetland determination/delineation) report will be required to verify the absence or presence of wetlands throughout the project corridor. Two stream crossings, UNT of Williams Creek and a branch of the UNT of Williams Creek along the south side of 106th St, have been identified along the project corridor. A "Waters of the US" (wetland determ ination/del ineation) report will be required to officially determine the boundaries and locations of all jurisdictional ditches, streams, or other watercourses within the project limits. g. Regulatory Permits: An IDEM Rule 5 permit will be required since the project will be disturbing greater than 1 acre. The proposed project will involve work below the ordinary high water mark of UNT of Williams Creek. As a result, a US Army Corps of Engineer's Section 404 permit and an IDEM Section 401 Water Quality Certification will be required. An IDNR Construction in Floodway permit will be required. Additionally, Hamilton County Outlet and Crossing permits will be required. h. Historic Resources Impacts (Section 106 of the Historic Preservation Act): The Hamilton County Interim Report was reviewed for the proposed corridor. The interim report did not identify any historic structures within the probable area of potential effect. However, it is possible that other significant resources, not inventoried in the interim report, are present. All applicable Cultural and Section 106 Documentation; including an Historic Properties Report, will be developed and submitted to the Indiana Department of Transportation's Cultural Resources Section for approval. The proposed project will result in the acquisition of undisturbed right-of-way. As a result, an Archaeological Records Review and Phase la Archaeological Survey will be required to identify potentially significant cultural resources within the proposed project limits. L Noise Analysis: Because this activity is classified as a Type I project (involves a roadway on a new alignment) a noise analysis will be required. The noise analysis will be conducted in accordance with INDOT's Traffic Noise Policy effective February 2007. The traffic noise analysis will determine if noise abatement is required for this project. j. Asbestos Rules: A single family residence (Kirk property) will be demolished as part ofthis project. The U.S. Occupational Safety and Health Administration (OSHA), Construction Industry Asbestos UNITED CONSULTING 06/10/10 Page 4 of 8 Standard (29 CFR 1926.1101) requires that asbestos inspections be completed prior to demolition activities. According to the Indiana Air Rule (326 IAC 14-2-1 and 14-10) and U.S. Environmental Protection Agency (EPA) National Emission Standard for Hazardous Air Pollutants (NESHAP 40 CFR 61 Subpart M) structures that are being demolished or renovated must be inspected for the presence of friable and non -friable forms of asbestos. The Indiana Department of Environmental Management enforces both the Indiana Air Rule and the NESHAP federal regulations. It. Public Involvement: During the completion of the NEPA environmental document, this project will likely include a public involvement program due to possible impacts to the natural and manmade environment. The public involvement program will follow the requirements in accordance with the INDOT Public Involvement Policies and Procedures approved by the Federal Highway Administration, U.S. Department of Transportation of March 25, 2009. VIA PROPOSED FACILITY Illinois St will be designed to meet City of Carmel standards for a Secondary Parkway, as identified in the Carmel Clay Comprehensive Plan, Thoroughfare Plan, and the INDOT standards for an Urban Local Road. All work performed on both Spring Mill Rd and 106th St will be designed to meet 1NDOT standards for a Local Urban Collector. Three roundabouts will be constructed throughout the project. The first roundabout will be constructed at Spring Mill Rd; this will be a three legged single lane roundabout (See Traffic Flow Diagram). A dual lane configuration will be constructed for both the northbound Spring Mill Rd approach and westbound Illinois St approach. Southbound Spring Mill Rd will have a single lane entrance. Both dual lane entrances will have a dedicated right turn lane. The exits along Spring Mill Rd will be single lane. The roundabout will be located southeast of the existing intersection to eliminate the need for additional right-of-way along the west side of Spring Mill Rd. The second roundabout will be constructed at the intersection of Illinois St and Superior St. This will be a three legged roundabout with 2 circulating lanes along the west and east sides and a single lane along the north and south sides (See Traffic Flow Diagram). A dual lane configuration will be provided on all three entrances with two lane exits along Illinois St and a single lane exit onto Superior St. 103rd St will "T" into Superior St just southeast of the proposed roundabout with dual, free flowing, right tum lanes (no left turns will be allowed) as opposed to connecting to the roundabout as in the existing condition. Based on Stage 1 design plans, provided by RW Armstrong, the intersection of 103rd St and US 31 will be eliminated with a cul-de-sac being constructed at 103rd St. Prior to the reconstruction of US 31, the dual right turn lanes from 103rd St to Superior St will have priority with Superior St being stop controlled. Following the reconstruction of US 31, Superior St will be given priority with 103rd St becoming stop controlled. Additionally, the splitter island along Superior St will be reduced allowing left turns from 103rd St. This change of priority will allow 103rd St to have sufficient capacity while access to US 31 is maintained; yet minimize the cross section of 103rd St for the future cul-de-sac condition. UNITED CONSULTING 06/10/10 Page 5 of 8 The final roundabout along Illinois St will be constructed at 106th St. This will be a three legged roundabout with 2 circulating lanes along the north, south and west sides and a single lane along the east side (See Traffic Flow Diagram). Dual lanes will be provided on all three entrances with two lane exits to Illinois St and eastbound 106th St. A single lane exit will be provided for westbound 106th St. The proposed intersection will be located approximately 400 feet west of the existing Illinois St / 106th St intersection and will be located to minimize impacts to UNT of Williams Creek. To accommodate future development of Illinois St to the north, this roundabout will be designed for two through lanes along the east side of the roundabout and will be reduced to the proposed condition through the use of pavement markings. In addition to the 103rd St intersection, RW Armstrong provided Stage 1 plans for the proposed tight diamond interchange at 106th St and US 31. The proposed configuration calls for two lanes in each direction along 106th St with dual left turn lanes onto the existing Illinois St. Based on the proposed relocation of the Illinois St / 106th St intersection, coordination will be required with RW Armstrong to revise the 106th St / US 31 interchange geometry to work with the proposed roundabout. A I0 foot multi -use path will be included along Illinois Street in accordance with the Carmel Clay Comprehensive Plan - Bicycle and Pedestrian Plan. The path will travel along the west side of Illinois St with the south end of the trail turning to the north along Spring Mill Rd and terminating at the end of construction. Due to the proximity of the path to the south detention pond it is anticipated a small retaining wall will be required to support the path in this area. The path will fully encompass the central roundabout, with pedestrian openings in the splitter islands, connecting all sidewalks within the vicinity. The path will cross from the west side of Illinois St to the east at the south leg of the 106th St roundabout connecting to the existing path heading east. Access will also be provided to the north side of 106th St through the east leg of the roundabout. Finally, a small portion of pathway will be constructed on the small structure over UNT of Williams Creek also for future development. IX. TRAFFIC CAPACITY AND OPERATIONS ANALYSIS In addition to the traffic data provided by RW Armstrong for the intersection of 106th St / Illinois St and at the proposed interchange ramps, traffic data will need to be collected at the intersections of Spring Mill Rd, Superior St and I 03rd St. These counts will be adjusted for seasonal variations and multiple axles. The intersections will be balanced based on the proposed cul-de-sac on 103rd St and projected to a design year of 2033. The traffic forecast will be completed in accordance with procedures used in 1NDOT's Office of Modeling and Forecasting. Utilizing the projected traffic data VISSIM traffic simulation modeling software will be utilized to model the entire project as well as a portion of the 106th / US 31 interchange to verify lane configurations and capacity at each roundabout. A simulation will also be generated for the construction year traffic to confirm capacity for the proposed configuration at 103`d, prior to the US 31 construction. All finding will be summarized in an abbreviated traffic report. UNITED CONSUL77NG 06/10/10 Page 6 of 8 X. PROPOSED DRAINAGE The existing storm water runoff drainage patterns will be perpetuated in the proposed design. A new detention pond will be constructed west of the proposed realignment of Illinois St. The existing, northern, detention basin will be maintained in the proposed condition. The south detention pond will be modeled to verify capacity due to the increase of impervious areas. The shallow channel along 106th St will be conveyed under the south leg of the roundabout via a proposed culvert. The existing culvert under Spring Mill Rd, north of Illinois St, will be replaced to accommodate the Spring Mill Rd roundabout approach alignments. The small structure which carries 106th Street over UNT of Williams Creek is anticipated to be replaced with an in-kind structure. The proposed structure is anticipated to be an 18 foot span three sided culvert or four sided box hydraulically sized to provide the same waterway opening as the existing structure. Three of the four wingwalls are anticipated to be used as retaining walls to limit the impact of the proposed reconstruction of 106th Street to the current alignment of the UNT of Williams Creek. Bicycle height, concrete Texas rail will be used over the structure. On the north side of 106th Street, the multiuse path cross section will be provided over the proposed structure. On the south side of 106th Street, the concrete barrier rail will be mounted just behind the combined concrete curb and gutter. XI. LIGHTING Decorative street lighting will be provided along the entire roadway, including all three roundabouts. XII. LANDSCAPING Landscape Architectural services will be subconsulted for the landscape design, including both nursery plantings and irrigation design. Plant selection will conform, as much as possible, to the City of Carmel Urban Forester's preferred plant species. The design of the roundabouts will be consistent with those recently constructed in Carmel and will feature limestone retaining walls, plantings, accent lighting and irrigation. The landscaping treatments for the medians and shoulders will primarily consist of shade trees and grass plantings, with additional shrubs and perennials at certain locations. XIIL MAINTENANCE OF TRAFFIC Illinois St will remain open during construction with traffic maintained on a single side of the boulevard during each phase. Drive access will be maintained at all times throughout the project. Intermittent and partial closures will be required along Superior St and 103`' St. The roundabouts at the intersections of Spring Mill Rd and 106th St will be constructed in phases utilizing varying traffic patterns in combination with existing, temporary and proposed pavements. The majority of the central roundabout will be constructed within the existing traffic circle without impacting traffic. UNITED CONSULTING 06/10/10 Page 7 of 8 XIV. LAND ACQUISITION Land acquisition for a federal -aid project must follow the Uniform Relocation Assistance and Real Property Acquisition Policies for Federal and Federally Assisted Programs Act. This process includes title research, right-of-way engineering, appraisal problem analysis (APA), an appraisal, a review appraisal and negotiations/buying with the property owner. After review of the project layout and the Hamilton County GIS information, it is estimated that there will be impacts to 18 parcels (3 residential and 15 commercial, of which 7 are classified as vacant land) within the project limits. (See Proposed Land Acquisition (A) and (B)) All existing right-of-way will be verified during the land acquisition process. If recorded documents do not exist, it may be necessary to reacquire portions of the existing right-of-way, which could increase the number of parcels. XV. PEER REVIEW To assure applicable design standards and procedures are being maintained for the complex design features of the roundabouts, proposed for this project American StructurePoint, Inc will provide a peer review at Stage 1 of plan development. XVI. PROJECT SCHEDULE This project will be developed for construction in the Spring of 2013 and will follow the new INDOT LPA Guidelines. We anticipate two formal INDOT reviews, Stage 1 and Stage 3. A Stage 2 review will be held with the City of Carmel only. Refer to the project schedule provided herein for additional details. XVII. PROJECT DEVELOPMENT COST ESTIMATE The Project Development Cost Estimate is based on the scope of work outlined in this Engineer's Report and detailed construction costs estimates. The estimate was developed based in current dollars and inflated to the anticipated construction year of 2013. The inflation rate used for the projection is 6% per year. (See enclosed Project Development Cost Estimate for more details). UNITED CONSULTING 06/10/10 Page 8 of 8