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HomeMy WebLinkAboutCorrespondencePlan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 1 1 CrossRoad Engineers Willie Hall 3/5/25 8:49 AM Changemark Plan Element A9 If the project area falls within the watershed for which there is a TMDL, the plan should identify the name of the TMDL, and pollutant(s) included in the TMDL. Please revise accordingly. 170043003_CG-East- Lawn_C4.2_SWPPP.pdf Reviewer Response: Willie Hall - 4/21/25 11:34 AM ---------------------------------------------------------- Responded by: Bryan Sheward - 4/7/25 10:21 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 2 1 CrossRoad Engineers Willie Hall 3/5/25 8:49 AM Changemark Plan Element A11 Please identify if discharge is to a water on the current 303(d) list of impaired waters and the pollutant(s) for which it is impaired. Please revise accordingly. 170043003_CG-East- Lawn_C4.2_SWPPP.pdf Responded by: Bryan Sheward - 4/8/25 3:08 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 3 1 CrossRoad Engineers Willie Hall 3/5/25 8:49 AM Changemark Dimensions Please reference the FODS specifications on Plan Sheet C 4.1. Please include dimensions of the FODS on Plan Sheet C4.0. 170043003_CG-East- Lawn_C4.2_SWPPP.pdf Responded by: Bryan Sheward - 5/2/25 12:10 PM Comment noted. Please see revised B2 note on sheet C4.2. Contractor staging shall utilize the existing asphalt pavement. ---------------------------------------------------------- Reviewer Response: Willie Hall - 4/21/25 11:39 AM Please identify what material will be used to stabilize the staging area. ---------------------------------------------------------- Responded by: Bryan Sheward - 4/8/25 3:12 PM Noted. Please refer to the revised plan sheets with updated information. Resolved REVIEW COMMENTS Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 4 1 CrossRoad Engineers Willie Hall 3/5/25 8:49 AM Changemark PE B11 Construction Entrance Please revise item 4.1 as no stone will be utilized for the proposed construction entrance. Please reference the FODS specifications on Plan Sheet C4.1. 170043003_CG-East- Lawn_C4.2_SWPPP.pdf Responded by: Bryan Sheward - 5/2/25 12:11 PM Comment noted. Construction entrance has been updated to meet the minimum requirements specified and relocated to be adjacent to project site. ---------------------------------------------------------- Reviewer Response: Willie Hall - 4/21/25 11:59 AM The proposed construction entrance does not meet the minimum size requirements of 20'x50' and is not located to provide ingress and egress for the project area. Please review and revise. ---------------------------------------------------------- Responded by: Bryan Sheward - 4/8/25 3:17 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 5 1 Urban Forestry Daren Mindham 3/5/25 9:37 AM Changemark L401 - trees over utility pipe Will these trees need to be adjusted or removed; they are over a drainpipe. 170043003_CG-East- Lawn_L401_Planting-Plan.pdf Responded by: Bryan Sheward - 4/11/25 1:43 PM Yes, they have been adjusted accordingly. Resolved 6 1 Urban Forestry Daren Mindham 3/5/25 9:43 AM Changemark L401 Gin-b tree With all the open lawn area, is a tree really need to be placed in this small hardscape surrounded area? With that, I would recommend that all trees be at least 8' from a sidewalk/path to limit sidewalk lifting and low limb clearance. 170043003_CG-East- Lawn_L401_Planting-Plan.pdf Responded by: Bryan Sheward - 4/11/25 1:43 PM This tree has been removed. Trees have been adjusted where possible. Resolved 7 1 Urban Forestry Daren Mindham 3/5/25 9:47 AM Changemark L401 stone (sitewide comment) Our Department does not recommend stone be used in landscape islands. We do not permit plant material to be planted in stone/rock. These parking lot islands should be organic in nature to promote the health of the plant material. Stone will only compact the soil and cause increased heating affect. 170043003_CG-East- Lawn_L401_Planting-Plan.pdf Responded by: Bryan Sheward - 4/11/25 1:43 PM The stone areas were requested by the client to match the character/design of existing islands they maintain throughout campus. Additionally, stone does not cover any entire island, and no plantings are inside the small stone patches at the island corners. Resolved 8 1 Urban Forestry Daren Mindham 3/5/25 9:51 AM Changemark L401 Ame-a This tree seems a bit forced in this location. I don't mind lots of plants but the proximity to the bike racks may become a clearance concern and this one Ame-a by itself seems a bit out of place. Please review for removal or moving. 170043003_CG-East- Lawn_L401_Planting-Plan.pdf Responded by: Bryan Sheward - 4/11/25 1:43 PM This tree has been removed and replaced with shrubs. Resolved Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 9 1 Urban Forestry Daren Mindham 3/5/25 9:58 AM Changemark L410 tree sizes 6" caliper is not recommended. I assume you want to go big for show, but generally they will be stressed and need more than irrigation to survive the first 6 years. I would recommend 3" caliper if you want to go big. Each inch of caliper is 1 year of transplant shock and additional maintenance needs. Up to you, but specifically sour gums in generally do not do well planted at 2" caliper without great soil and care, in Carmel. 170043003_CG-East- Lawn_L410_Planting- Schedule&Details.pdf Responded by: Bryan Sheward - 4/11/25 1:44 PM The client is acutely aware of the horticultural concerns and challenges with planting larger caliper trees. Their investment group demands immediate show/impact and has directed the contractor to find the largest caliper (up to 6”) available within reason. We are working with the landscape installer to determine availability of plant materials and will be adjusting caliper size as needed. Resolved 10 1 Urban Forestry Daren Mindham 3/5/25 2:27 PM Changemark L401 - trees planted in granite The two ginkgoes of these five trees are shown over a drainage utility. These are large growing trees, and I assume they are being spec'd for expensive tree pits? Please show on this sheet the expectation of how they will be installed. With that said, the trees would thrive and survive a lot better planted a couple feet away to the NE in the HP sod area. I would recommend planting them in 6' by 6' hardwood mulch and metal edge areas adjacent to the granite and within the HP sod area. 170043003_CG-East- Lawn_L401_Planting-Plan.pdf Responded by: Bryan Sheward - 4/11/25 1:44 PM The trees have been adjusted so that no trees are over drainage utilities. The trees within the crushed granite plaza area are to be planted with a paver grate system to keep the stone from being compacted directly over the roots. Please refer to Detail 3 on Sheet L410. Resolved 11 1 Urban Forestry Daren Mindham 3/5/25 2:39 PM Changemark L410 tree planting detail I would add a comment that all wire basket and twine are to be removed at time of planting. The city of Carmel requires all transportation material to be removed at planting. If these trees are all larger trees, will they then be tree spade planted? 170043003_CG-East- Lawn_L410_Planting- Schedule&Details.pdf Responded by: Bryan Sheward - 4/11/25 1:44 PM A note has been added that states: “Remove all wire basket, twine, and other transportation material prior to planting.” We are working with the landscape installer to determine final size (based on price and availability) and method of planting. Resolved 12 1 Urban Forestry Daren Mindham 3/5/25 2:39 PM Changemark L410 tree in granite pit I have made a comment not to plant trees in material like this when you have open lawn area a couple feet away. Survivability will not be the same. With that, this detail should show soil as much as possible under a tree grate, otherwise, you are planting a tree in rock. This detail doesn't seem to make sense for a 6" caliper tree installation. My experience is that a 90" tree spade would be needed for this installation of caliper size. 170043003_CG-East- Lawn_L410_Planting- Schedule&Details.pdf Responded by: Bryan Sheward - 4/11/25 1:44 PM The detail has been updated to increase the volume of soil within the tree pit. We are working with the landscape installer to determine final size (based on price and availability) and method of planting. Resolved 13 1 Fire Carmel Fire 3/11/25 8:11 AM Comment Required exiting from the buildings shall be maintained at all times. Info Only 14 1 Fire Carmel Fire 3/11/25 8:12 AM Comment FDC's and fire hydrants shall be accessible to fire department personnel and apparatus at all times. Info Only Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 17 1 CrossRoad Engineers Willie Hall 3/11/25 1:28 PM Changemark 102.02.vii Per Section 102.02.vii of the STSM, the Plan and Profile Sheet(s) shall include the hydraulic grade line indicated on the profiles to demonstrate that the hydraulic grade line remains below the rim elevation for the design condition. 170043003_CG-East-Lawn_C6.1_Storm- Profiles.pdf Responded by: Bryan Sheward - 4/8/25 3:19 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 18 1 CrossRoad Engineers Willie Hall 3/11/25 1:28 PM Changemark 102.02.vii The following statement shall be included on all plan/profile sheets: The storm sewer system shall be constructed per design specified and as approved by the City of Carmel on the final approved construction plans. Deviations from the approved design shall only be permitted due to special circumstances or difficulty during construction and will require prior field approval from a designated representative of the City of Carmel in addition to supplemental approval by the design engineer. An explanation of any such deviation shall be included as a requirement on as-built/record drawings submitted for release of performance guarantees. Approved design slopes identified as generating velocities of 2.5 fps or less or 10 fps or greater (at full flow capacity) shall require as-built certification at the time of construction, prior to backfilling the pipe. The contractor is instructed to as- built each section of storm pipe as it is being installed to ensure compliance with the design plans and as approved by the City of Carmel. 170043003_CG-East-Lawn_C6.1_Storm- Profiles.pdf Responded by: Bryan Sheward - 4/8/25 3:23 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 19 1 CrossRoad Engineers Willie Hall 3/11/25 1:29 PM Comment Please review the page numbers and title blocks on all sheets of the construction plans. Some are missing this information. Responded by: Bryan Sheward - 4/8/25 3:24 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 20 1 CrossRoad Engineers Willie Hall 3/11/25 1:48 PM Changemark 102.02.xi.k Please show where the emergency overflow path will terminate at the receiving stormwater system. 170043003_CG-East- Lawn_C5.0_Overall-Grading&Drainage- Plan.pdf Responded by: Bryan Sheward - 4/8/25 3:29 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 21 1 CrossRoad Engineers Willie Hall 3/11/25 1:48 PM Changemark 102.02.xi.m Per Section 102.02.xi.m of the STSM, the grading and drainage plan shall include a drainage summary, which summarizes the basic conditions of the drainage design, including site acreage, off-site/upstream acreage, allowable release rates, post-developed 10-year, and 100-year flows leaving the site, volume of detention required, volume of detention provided, and any release rate. 170043003_CG-East- Lawn_C5.0_Overall-Grading&Drainage- Plan.pdf Responded by: Bryan Sheward - 4/8/25 3:30 PM Noted. Please refer to the revised plan sheet with updated information. Resolved Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 22 1 CrossRoad Engineers Willie Hall 3/11/25 1:48 PM Changemark 102.02.xi.p Per Section 102.02.xi.p of the STSM, the grading and drainage plan shall include the definition of minimum flood protection grade and minimum lowest adjacent grade in accordance with this manual. 170043003_CG-East- Lawn_C5.0_Overall-Grading&Drainage- Plan.pdf Responded by: Bryan Sheward - 5/2/25 12:20 PM Comment noted. Please see revised sheet C5.0 for added MLAG definition. ---------------------------------------------------------- Reviewer Response: Willie Hall - 4/21/25 12:23 PM Please include the definition for MLAG as well. ---------------------------------------------------------- Responded by: Bryan Sheward - 4/8/25 3:56 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 23 1 CrossRoad Engineers Willie Hall 3/11/25 2:03 PM Changemark 102.02.xiv Per Section 102.02.xiv of the STSM, the construction plans shall include a Structure Data Table, and, at a minimum, shall include the following information: structure number reference, upstream structure number, downstream structure number, top casting elevation, upstream pipe elevation, downstream pipe elevation, pipe length, pipe material, pipe size, type of structure and detail reference to type of structure and any notes related to the structure. 170043003_CG-East-Lawn_C6.0_Utility- Plan.pdf Responded by: Bryan Sheward - 4/8/25 3:58 PM Noted. Please refer to the revised plan sheet C6.2 with updated information. Resolved 24 1 CrossRoad Engineers Willie Hall 3/11/25 2:06 PM Changemark 104.02-MFPG Please include the MFPG, MLAG, and FFE for building 8 and 9. 170043003_CG-East- Lawn_C5.0_Overall-Grading&Drainage- Plan.pdf Responded by: Bryan Sheward - 5/2/25 12:20 PM Comment noted. Per discussions with Ryan Shehorn and Bob Bleich, in coordination with Willie, the indicated MLAG and MFPG have been adjusted to reflect a 9-inch separation from the FFE. The definitions included on the plan sheets remain direct quotations from the drainage ordinance. ---------------------------------------------------------- Reviewer Response: Willie Hall - 4/22/25 10:19 AM The City of Carmel will allow a minimum separation of 9" from the local ponding elevations to the MFPG and MLAG. Please review and revise. ---------------------------------------------------------- Responded by: Bryan Sheward - 4/8/25 3:59 PM Noted. Please refer to the revised plan sheet with updated information. Resolved Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 26 1 CrossRoad Engineers Willie Hall 3/11/25 2:43 PM Comment Please confirm that a Storm Water Management Application has been approved by City of Carmel. Responded by: Bryan Sheward - 4/8/25 4:04 PM This has been submitted. Not sure how to confirm it's been approved yet. Resolved 27 1 CrossRoad Engineers Willie Hall 3/11/25 2:59 PM Changemark 501.03 Per Section 501.03 of the STSM, a minimum drop of 0.1 foot through manholes and inlet structures should be provided. When changing pipe size, match crowns of pipes, unless detailed modeling of hydraulic grade line shows that another arrangement would be as effective. 170043003_CG-East-Lawn_C6.1_Storm- Profiles.pdf Responded by: Bryan Sheward - 4/8/25 4:03 PM Noted. Please refer to the revised plan sheet with updated information. We were able to achieve this in some areas, but the rest of the areas we were limited due to depth, or existing structure connections/inverts. Resolved 28 1 CrossRoad Engineers Willie Hall 3/11/25 3:03 PM Changemark Existing Utilities Please verify that the locations of all existing electrical power vaults, transformers, power lines, gas lines, television cable, and telephone lines are shown 170043003_CG-East- Lawn_C2.0_Existing-Conditions&Demo- Plan.pdf Responded by: Bryan Sheward - 4/8/25 4:03 PM Confirmed that private utility locates were conducted with the survey. Resolved 29 1 CrossRoad Engineers Willie Hall 3/11/25 3:04 PM Changemark Stormwater Control Please show all initial storm water controls on the demolition sheet or a note that all controls from the SWPPP sheet must be installed prior to earth work or demolition. 170043003_CG-East- Lawn_C2.0_Existing-Conditions&Demo- Plan.pdf Responded by: Bryan Sheward - 4/8/25 4:08 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 30 1 CrossRoad Engineers Willie Hall 3/11/25 3:08 PM Changemark Notes Please include the following notes in the construction plans: “No earth disturbing activity may commence without an approved storm water management permit." “Damage to the existing right-of-way shall be restored/repaired to the satisfaction of the City at the completion of the project. The contractor is encouraged to inspect the right-of-way with the City prior to the start of construction to document the existing condition of the right-of-way." 170043003_CG-East- Lawn_C1.1_General-Notes.pdf Responded by: Bryan Sheward - 4/8/25 4:09 PM Noted. Please refer to the revised plan sheet with updated information. Resolved Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 31 1 CrossRoad Engineers Willie Hall 3/11/25 3:13 PM Changemark Underground Detention-102.02.v.b Please include the critical elevations for the underground detention facility as outlined in section 102.02.v.b of the STSM. 170043003_CG-East- Lawn_C5.0_Overall-Grading&Drainage- Plan.pdf Reviewer Response: Willie Hall - 4/22/25 10:19 AM See Ref#45 ---------------------------------------------------------- Responded by: Bryan Sheward - 4/11/25 1:37 PM Critical elevations for the underground detention facility as outline in section 102.02.v.b of the STSM are not able to be provided due to the detention facility being an existing, previously installed system with blind "T" connections. The locations of the underground pipes have been drafted based on historical plans. Further verification of information is not feasible, as there are no access points to the pipes—they blind “T” into the CMP header pipes within the system. Resolved 32 1 CrossRoad Engineers Willie Hall 3/11/25 3:31 PM Changemark A14 Please add Construction Stormwater General Permit to this plan element. 170043003_CG-East- Lawn_C4.2_SWPPP.pdf Responded by: Bryan Sheward - 4/8/25 4:10 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 33 1 CrossRoad Engineers Willie Hall 3/11/25 3:35 PM Changemark B4 Areas of concentrated flow for this project will be curb gutters and channels in the parking area that terminate at inlets. Please include inlet protection and the reference to details and specs in this plan element. 170043003_CG-East- Lawn_C4.2_SWPPP.pdf Responded by: Bryan Sheward - 5/2/25 12:24 PM Comment noted. Note B4 on SWPPP has been revised to note presence of drop-in inlet protection. ---------------------------------------------------------- Reviewer Response: Willie Hall - 4/21/25 1:32 PM Please include the proposed erosion control measure in the plan element (Drop-in Inlet Protection) ---------------------------------------------------------- Responded by: Bryan Sheward - 4/8/25 4:10 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 34 1 CrossRoad Engineers Willie Hall 3/11/25 3:36 PM Changemark B5 Silt fence or filter socks appear to be the measures proposed in the plan, please include here as well as reference for details and specs. 170043003_CG-East- Lawn_C4.2_SWPPP.pdf Responded by: Bryan Sheward - 4/8/25 4:11 PM Noted. Please refer to the revised plan sheet with updated information. Resolved Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 35 1 CrossRoad Engineers Willie Hall 3/11/25 3:39 PM Changemark B11 Please include specifications and maintenance standards for filter socks. 170043003_CG-East- Lawn_C4.2_SWPPP.pdf Responded by: Bryan Sheward - 4/8/25 4:20 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 36 1 CrossRoad Engineers Willie Hall 3/11/25 3:43 PM Changemark C3, C4, C5 The intent of these plan elements is to provide information regarding post construction water quality measures. Since this project is not proposing any water quality features these plan elements should be N/A. 170043003_CG-East- Lawn_C4.2_SWPPP.pdf Responded by: Bryan Sheward - 5/2/25 12:25 PM Comment noted. Please refer to updated sheet C4.2 for revised section C4. FlexStorm Pure FX Inlet Filter Bags have been specifically called out as requested. ---------------------------------------------------------- Reviewer Response: Willie Hall - 4/21/25 1:38 PM It is unclear what post-construction water quality measures are being proposed or identified on the plans. Please include specific mention of the measures being installed, or if none are proposed for this project then change plan elements to N/A. ---------------------------------------------------------- Responded by: Bryan Sheward - 4/8/25 4:24 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 37 1 CrossRoad Engineers Willie Hall 3/12/25 2:51 PM Changemark Filter Sock The filter socks should continue up the sides of the project to ensure to illicit discharge is able to leave the area. Please revise. 170043003_CG-East- Lawn_C4.0_Erosion-Control-Plan.pdf Responded by: Bryan Sheward - 5/2/25 12:26 PM Comment noted. Please refer to revised sheet C 4.0. ---------------------------------------------------------- Reviewer Response: Willie Hall - 4/21/25 1:39 PM Please include protection along the eastern side of the staging area as well. ---------------------------------------------------------- Responded by: Bryan Sheward - 4/8/25 4:25 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 38 1 CrossRoad Engineers Willie Hall 3/12/25 2:51 PM Changemark Traffic Barricades Barricades or fencing should be placed around the entire project to deter any unauthorized vehicle or pedestrian traffic through the project and limit tracking of sediment to the construction entrance. Please revise. 170043003_CG-East- Lawn_C4.0_Erosion-Control-Plan.pdf Responded by: Bryan Sheward - 4/11/25 1:37 PM Noted. Please refer to the revised plan sheet with updated information. Resolved Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 39 1 CrossRoad Engineers Willie Hall 3/13/25 8:48 AM Changemark cre Item 2 Confirm the pipe material is CMP, update plan and profile sheets to show correct material. 170043003_CG-East-Lawn_C6.0_Utility- Plan.pdf Responded by: Bryan Sheward - 4/8/25 4:27 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 40 1 CrossRoad Engineers Willie Hall 3/13/25 8:52 AM Comment City of Carmel will waive the requirement of 2 BMP water quality measures but wants to see permanent inlet baskets proposed for all the inlets. Please include in the next submittal inlet protection for all the inlets and include details and manufacturers specifications. Responded by: Bryan Sheward - 5/2/25 12:29 PM Comment noted. Notes have been added to all Grading and Drainage sheets, and Drainage Memo has been revised. ---------------------------------------------------------- Reviewer Response: Willie Hall - 4/21/25 1:43 PM The permanent filter bags shall be shown on the grading and drainage plan and a reference directing the reader to the detail included. Update the "Water Quality" portion of the Drainage Memorandum to include the filter bags. ---------------------------------------------------------- Responded by: Bryan Sheward - 4/8/25 4:28 PM Noted. Please refer to the revised erosion control sheets with updated information. Resolved Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 42 1 CrossRoad Engineers Willie Hall 3/13/25 9:08 AM Changemark Waiver Please submit a separate letter for the detention requirement as well as a letter for the water quality BMP. City of Carmel will require one water quality treatment measure but will waive the requirement for 2. 170043003_Carmel Gateway East Lawn_Wavier Request Letter_20250228.pdf Responded by: Bryan Sheward - 5/19/25 11:28 AM The waivers for stormwater detention and stormwater quality were separated into two separate letters and placed into the Correspondence folder on 4/11. Each waiver request letter is specific to the request and does not reference the other request. Please review and let us know if you have any further questions. ---------------------------------------------------------- Reviewer Response: Willie Hall - 5/16/25 4:36 PM Please remove mention of water quality from the detention waiver. Project approval will be forth coming once this is completed. ---------------------------------------------------------- Responded by: Bryan Sheward - 5/2/25 12:29 PM Comment noted. ---------------------------------------------------------- Reviewer Response: Willie Hall - 4/22/25 10:24 AM Response noted. Waiver letters will be scheduled for review with the City of Carmel. This comment will remain unresolved until engineering has approved the design. ---------------------------------------------------------- Responded by: Bryan Sheward - 4/11/25 1:38 PM Noted. Please refer to the revised waiver request letters. Resolved 43 1 CrossRoad Engineers Willie Hall 3/13/25 9:14 AM Changemark 102.02.ii Per Section 102.02.ii of the STSM, the construction plans shall have a copy of a legal boundary survey for the site, performed in accordance with Rule 12 of Title 865 of the Indiana Administrative Code or any applicable and subsequently adopted rule or regulation for the subdivision limits, including all drainage easements and wetlands. 170043003_CG-East-Lawn_L000_Cover- Sheet.pdf Responded by: Bryan Sheward - 4/8/25 4:29 PM The legal boundary survey is included in sheets V0.0- V0.3. Resolved 44 1 CrossRoad Engineers Willie Hall 3/13/25 9:14 AM Changemark Disturbance Please include the total site disturbance on the cover sheet. 170043003_CG-East-Lawn_L000_Cover- Sheet.pdf Responded by: Bryan Sheward - 4/8/25 4:29 PM The total site disturbance area has been added to the Cover Sheet. Resolved Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 45 1 CrossRoad Engineers Willie Hall 3/13/25 11:11 AM Changemark 102.03.ii.h Please expand on the findings from the 2024 survey and the condition of the UD. City of Carmel will need confirmation that the UD is in good working order, the location of the existing system on the plans is correct, and the exact material it's comprised of. 170043003_Carmel Gateway East Lawn_DranageMemo_20250228.pdf Responded by: Bryan Sheward - 5/2/25 12:48 PM Comment noted. A statement that the owner shall conduct a post-construction camera inspection of the detention system has been included in the updated Operations and Maintenance (O&M) Manual as requested. ---------------------------------------------------------- Reviewer Response: Willie Hall - 4/22/25 10:22 AM The City of Carmel will not require any inspection prior to construction, however an agreement to have the detention system inspected via camera post construction is requested. This will be to ensure no damage is present or occurred during the project and to determine if any maintenance of the system is required. Please include this agreement in the O&M Manual. ---------------------------------------------------------- Responded by: Bryan Sheward - 4/8/25 4:30 PM There is no evidence that the existing underground detention system is in any way compromised. Performance of the storm system suggests it is in proper working order as no flooding of the parking lot has ever been observed. The location of the underground pipes have been drafted in based on historical plans. There is no practical way to confirm beyond what we have done because there are no access points to the pipes since they blind "T" into the CMP "header" pipes within the system. Resolved 46 1 CrossRoad Engineers Willie Hall 3/13/25 1:13 PM Changemark 102.03 Please include a soils map in the Drainage Report. 170043003_Carmel Gateway East Lawn_DranageMemo_20250228.pdf Responded by: Bryan Sheward - 4/8/25 4:30 PM Noted. Please refer to updated drainage report. Resolved Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 47 1 CrossRoad Engineers Willie Hall 3/13/25 1:22 PM Changemark Filter Baskets Please include the proposed BMP filter baskets in the O&M Manual. 170043003_Carmel Gateway East Lawn_O&M Manual_20250228.pdf Responded by: Bryan Sheward - 5/2/25 12:30 PM Comment noted. Please refer to updated O&M manual for BMP exhibit map. ---------------------------------------------------------- Reviewer Response: Willie Hall - 4/21/25 1:51 PM Include the locations for the filter bags in the O&M Manual. ---------------------------------------------------------- Responded by: Bryan Sheward - 4/8/25 5:35 PM Noted. Please refer to updated O&M manual. Resolved 48 1 Sign Permits Aliza Shalit 3/18/25 10:02 AM Comment ADLS Amend-Sign will be required to review all proposed signage for both East and West portions of this submittal. Plan should be inclusive of both sides for visual consistency. Info Only 49 1 Vectren Energy Chad Miller 3/20/25 3:53 PM Comment No comments. Info Only 50 1 Engineering John Thomas 3/26/25 6:11 PM Comment Please revise the engineer's estimate to include the post construction filter bags and permanent seeding and mulch. Reviewer Response: John Thomas - 5/15/25 5:23 PM Estimate Approved. Please have performance bond for 100% of approved estimate amount delivered to Caleb Warner's attention in our office at 1 Civic Square, Carmel IN, 46032. ---------------------------------------------------------- Responded by: Bryan Sheward - 5/2/25 12:37 PM Comment noted. Please see revised Engineering Estimate that includes proposed sod. ---------------------------------------------------------- Reviewer Response: John Thomas - 4/23/25 3:44 PM Thank for including the post construction filter bags, however the permanent seeding and mulch or sod line item was not added. Please revise. ---------------------------------------------------------- Responded by: Bryan Sheward - 4/8/25 5:36 PM Noted. Please refer to updated engineer's estimate. Resolved Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 51 1 Engineering John Thomas 3/26/25 6:13 PM Comment Please address all Crossroad Engineer comments. Comment will remain unresolved until all comments addressed. Reviewer Response: John Thomas - 5/15/25 5:25 PM Resolving comment in anticipation of receiving revised waivers to avoid additional review cycle. ---------------------------------------------------------- Responded by: Bryan Sheward - 5/2/25 12:37 PM Comment noted. ---------------------------------------------------------- Responded by: Bryan Sheward - 4/8/25 5:36 PM Noted. Please refer to the revised plan sheet with updated information. Resolved 52 1 Transportation Systems David Littlejohn 3/27/25 12:07 PM Changemark DLj Item 2 There is not a bike rack detail included on any of the detail pages. Please include a detail of the proposed bike racks to ensure that they comply with the city's bicycle parking standards. Refer to section 5.29 of the City's UDO for more information on the city's bicycle rack type and installation requirements/details. 170043003_CG-East-Lawn_C3.0_Site- Plan.pdf Responded by: Bryan Sheward - 4/11/25 1:43 PM Added Detail 12/L600 to cover bike rack/bike parking detailing. Resolved 53 1 Planning & Zoning Christina Jesse 4/7/25 12:45 PM Comment Please upload Letter of Grant from the parking variance granted by the BZA to the documents folder. Thank you. Responded by: Bryan Sheward - 4/11/25 1:38 PM Noted. Please see uploaded letter. Resolved 55 1 Planning & Zoning Christina Jesse 4/7/25 12:48 PM Comment Please provide character imagery of the kind of outdoor furniture to be used on site including any swings, benches, tables, and seating. Responded by: Bryan Sheward - 4/11/25 1:42 PM Noted. Please see uploaded attachment of the imagery. Resolved 56 1 Planning & Zoning Christina Jesse 4/7/25 12:50 PM Comment Please provide bicycle parking details. Thank you. Responded by: Bryan Sheward - 4/8/25 5:37 PM Noted. Please refer to updated construction details. Resolved Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 57 1 Planning & Zoning Christina Jesse 4/7/25 12:50 PM Library Comment Please note that the $883.25 filing fee is still due. Responded by: Bryan Sheward - 5/2/25 12:38 PM Comment noted. Fee has been paid. ---------------------------------------------------------- Reviewer Response: Christina Jesse - 4/21/25 10:12 AM Payment can be made by check or credit card at the following link: https://www.govpaynow.com/gps/user/cyg/plc/9199 ---------------------------------------------------------- Responded by: Bryan Sheward - 4/8/25 5:37 PM Noted. Resolved 58 1 Planning & Zoning Christina Jesse 4/7/25 12:50 PM Changemark Cover sheet contact list Please provide my contact info on the Planning & Zoning section of the agency contact list 170043003_CG-East-Lawn_L000_Cover- Sheet.pdf Responded by: Bryan Sheward - 4/8/25 5:37 PM Noted. Resolved 59 1 Planning & Zoning Christina Jesse 4/7/25 12:51 PM Changemark Docket number Please add "Docket No. PZ-2025-00043 ADLS Amend" to the cover sheet 170043003_CG-East-Lawn_L000_Cover- Sheet.pdf Responded by: Bryan Sheward - 4/11/25 1:42 PM The Docket No. has been added to the cover sheet. Resolved Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 60 1 Planning & Zoning Christina Jesse 4/7/25 12:52 PM Changemark Roundabout design Please work with the Carmel Engineering Department to finalize the roundabout design adjacent to this site. 170043003_CG-East- Lawn_L100_Reference-Plan.pdf Reviewer Response: Christina Jesse - 5/16/25 4:49 PM Released conditional upon finalizing roundabout design with Engineering. ---------------------------------------------------------- Reviewer Response: Christina Jesse - 5/5/25 3:45 PM Thank you. This review comment will remain outstanding and the review task as "pending" until this item has been finalized. Please resubmit when all items have been worked out and the design is official. ---------------------------------------------------------- Responded by: Bryan Sheward - 5/2/25 12:38 PM Comment noted. Kimley-Horn will continue to coordinate with the City of Carmel Engineering Department for the interfaces with the City's roundabout project on College Ave. ---------------------------------------------------------- Reviewer Response: Christina Jesse - 4/21/25 10:12 AM ---------------------------------------------------------- Responded by: Bryan Sheward - 4/7/25 10:23 PM Noted. Kimley-Horn will continue to coordinate with the City of Carmel Engineering Department for the interfaces with the City's roundabout project on College Ave. Info Only 61 1 Planning & Zoning Christina Jesse 4/7/25 12:55 PM Comment Please verify light pole height from grade. Responded by: Bryan Sheward - 4/11/25 1:42 PM The existing 25’ light poles will be reused and relocated to new positions throughout the site, according to the photometrics plan. Resolved 62 1 Planning & Zoning Christina Jesse 4/7/25 12:57 PM Changemark Pergola finishes and materials Please provide colors and materials for the proposed pergola prototypes. As this parcel is located within a PUD, we must review these details at this portion of the review. 170043003_CG-East-Lawn_L601_Site- Details.pdf Responded by: Bryan Sheward - 4/11/25 1:43 PM Colors and materials are to match the existing pergola structures in the rest of the campus. The structure consists of square steel tube with cedar rafters. A note and character images have been added to the detail sheet (L601). Resolved Created in ProjectDox version 9.4.9.4 Plan Review - Review Comments Report Project Name: PZ-2025-00043 ADLS Amend - Parkwood Crossing East Lawn Workflow Started: 3/3/2025 10:32:13 AM Report Generated: 05/21/2025 11:42 AM REF #CYCLE REVIEWED BY TYPE FILENAME DISCUSSION STATUS 63 2 Planning & Zoning Christina Jesse 4/22/25 11:40 AM Comment Please upload renderings of lawn. Thanks! Responded by: Bryan Sheward - 5/2/25 12:44 PM Comment noted. Please see uploaded lawn renderings. Resolved 64 2 Engineering John Thomas 4/23/25 3:48 PM Comment Please have the project file for a right of way permit on the City's online portal. This will be required prior to stormwater permit approval. Site contractor or project manager is the typical applicant. https://cw.carmel.in.gov/PublicAccess/login Info Only Created in ProjectDox version 9.4.9.4 kimley-horn.com 250 East 96th Street, Suite 580, Indianapolis, IN 46240 317 218 9560 Drainage Memorandum To: City of Carmel From: Bryan Sheward, P.E Kimley-Horn and Associates, Inc. Original: February 28, 2025 Project Summary Project Name: Carmel Gateway East Lawn Location: Parkwood Crossing/Carmel Gateway, Carmel, IN Report Type: Drainage Memorandum Reviewing Agency: City of Carmel Basin Runoff Calculations: Rational Method Design Standards: City of Carmel Stormwater Technical Standards Manual (STSM) Project Narrative Project Scope Kimley-Horn and Associates, Inc. has been retained by Rubenstein Partners to prepare civil construction documents and provide civil engineering design services for the “Carmel Gateway East Lawn” project, a proposed amenity area and pedestrian drop off is proposed in front of Buildings 8 and 9 within the Parkwood Crossing office park development on the north side of 96th Street between College Avenue and Westfield Road. Herein the “Carmel Gateway East Lawn” project will be referred to as the Project. The Project scope includes: 1. Replacement of existing concrete drop off areas and entrance concrete sidewalks 2. Removal of asphalt and parking to create an amenity green space area 3. Installation of enhanced landscaping within the project area 4. Enhancement of stormwater conveyance system Existing Conditions In existing conditions, there are four primary inlets that drain the project area. Two are located within the project boundary, and two are located directly south of the project area. The inlets collect surface flow and directs runoff through an existing pipe network and underground detention system that exists under the existing parking lot. In the existing conditions, the watershed area draining to the existing inlets is ~2.25 acres at a composite Rational C value = 0.79. Page 2 kimley-horn.com 250 East 96th Street, Suite 580, Indianapolis, IN 46240 317 218 9560 The existing underground detention system was designed for and installed with the construction of the existing buildings and parking lot areas. Based on historical plans and the original detail below, it was comprised of three 48” diameter HI -Q Perforated Pipes running under the drive isles in the existing parking lot. However, based on survey field observations conducted in 2024, it is believed that the material was switched to Corrugated Metal Pipe. Proposed Conditions In the proposed conditions, the watershed area remains the same, but additional stormwater infrastructure is added due to grading adjustments. The composite Rational C value decreases to 0.55, as approximately 0.96 acres of pervious area is being added. The two inlets south of the project area will have reduced catchment areas, but their rational composite C value remains unchanged. The two northern inlets within the project boundary will have both reduced catchment areas and a lower rational composite C value due to the added storm infrastructure and impervious pavement removal. See Appendix A for drainage exhibits and calculations. To estimate the 10-year peak flow for the existing inlets under both existing and proposed conditions, a Time of Concentration of 5 minutes has been assumed. The summary table below compares the existing and proposed conditions for the watershed. Existing Conditions Proposed Conditions Area (ac) 2.25 acres 2.25 acres Impervious Area (ac) / Rational C 1.99 Acres / 0.90 1.03 acres / 0.90 Page 3 kimley-horn.com 250 East 96th Street, Suite 580, Indianapolis, IN 46240 317 218 9560 Pervious Area (ac) / Rational C 0.26 Acres / 0.30 1.22 acres / 0.30 Composite Rational C 0.79 0.55 Rainfall Intensity (5 Min Tc) 6.12 in/hr 6.12 in/hr 10yr Q (cfs) 10.88 7.57 Emergency Flood Routing In existing conditions, should the existing inlets fail, stormwater will pond up to a point where it will spill southeastward across the existing parking lot towards the entrance off of 96th street. Refer to Appendix A for existing conditions flood routing exhibit. The highest elevation of spill point is 820.70. The finish floor elevations of Buildings 8 and 9 are 822.72 and 822.06, respectively. Therefore, Building 8 has 2.05 feet of clearance, and Building 9 has 1.36 feet of clearance between the spill point and the existing finish floor elevations. In the proposed conditions, the spill point elevation is 821.20. This reduces the clearance to 1.52 feet for Building 8 and 0.86 feet for Building 9. Stormwater Quality In existing conditions, there are no stormwater quality BMPs to treat water prior to entry into the existing storm system. Due to the net reduction in impervious area, and the proposed turf and gentle slopes in the lawn which will naturally scrub runoff prior to collection into the system, there are no stormwater quality measures proposed. BroadAcre – McCordsville, Indiana Page 6 Appendix A: Aerial Photograph Page 6 of 63 Appendix A: Drainage Calculations PA R K W O O D B U I L D I N G 9 PARKWOOD BUILDING 8 NORTH EX-1 EX I S T I N G CO N D I T I O N S EX H I B I T SURFACE COVER SUMMARY CA R M E L G A T E W A Y EA S T L A W N © NO T A P P R O V E D F O R CO N S T R U C T I O N PARKWOOD BUILDING 9 PA R K W O O D B U I L D I N G 8 96 T H S T R E E T February 25, 2025 CARMEL GATEWAY EAST LAWN EXISTING CONDITIONS FLOOD ROUTING EXHIBIT CARMEL, IN 0'60'30' SCALE: 1" = 60'NO R T H GRADING LEGEND PARKWOOD BUILDING 8 PA R K W O O D B U I L D I N G 9 PA R K W O O D B U I L D I N G 9 PARKWOOD BUILDING 8 NORTH EX-1 PR O P O S E D CO N D I T I O N S EX H I B I T CA R M E L G A T E W A Y EA S T L A W N © NO T A P P R O V E D F O R CO N S T R U C T I O N SURFACE COVER SUMMARY PA R K W O O D B U I L D I N G 8 PARKWOOD BUILDING 9 PA R K W O O D B U I L D I N G 8 PARKWOOD BUILDING 9PARKWOOD BUILDING 9 PA R K W O O D B U I L D I N G 8 96 T H S T R E E T February 27, 2025 CARMEL GATEWAY EAST LAWN PROPOSED CONDITIONS FLOOD ROUTING EXHIBIT CARMEL, IN 0'60'30' SCALE: 1" = 60'NO R T H GRADING LEGEND PA R K W O O D B U I L D I N G 9 PARKWOOD BUILDING 8 February 25, 2025 CARMEL GATEWAY EAST LAWN CATCHMENT AREA MAP CARMEL, IN 0'40'20' SCALE: 1" = 40' NORTH 170043003 Carmel Gateway East Lawn DATE:2/25/2025 Pervious 0.30 EX1 0.50 0.00 0.50 0.30 0.15 EX2 0.15 0.03 0.12 0.41 0.06 D1 0.29 0.22 0.07 0.72 0.21 D2 0.11 0.07 0.04 0.65 0.07 D3 0.20 0.14 0.06 0.69 0.14 D4 0.17 0.13 0.04 0.72 0.12 D5 0.14 0.07 0.07 0.58 0.08 D7 0.09 0.01 0.08 0.36 0.03 D8 0.20 0.14 0.06 0.69 0.14 D9 0.11 0.03 0.08 0.45 0.05 D10 0.29 0.16 0.13 0.60 0.18 D11 0.23 0.00 0.23 0.30 0.07 Asphalt/ Concrete/ Roof 0.85 Runoff Coefficients: NotesPROPOSED CONDITIONS ONSITE DRAINAGE AREA CALCULATIONS Drainage Area Total Area (ac) Impervious Area (ac) Pervious Area (ac) Rational Coefficient Area * C 170043003 Carmel Gateway East Lawn DATE:2/26/2025 Structure ID Tributary Area A (ac) C 10-YR Peak Discharge (cfs) 100-YR Peak Discharge (cfs)Grate Max Ponding Depth H (ft) Entrance Grate Area A (sf) Entrance Loss Coefficient C Entrance Perimeter P (ft) Grate Capacity Q (cfs) 50% Clogged (cfs) EX1 0.5 0.30 0.92 1.37 R-3472 0.50 1.30 0.61 7.30 4.43 2.2 EX2 0.15 0.41 0.38 0.56 R-3472 0.50 1.30 0.61 7.30 4.43 2.2 D1 0.29 0.72 1.27 1.90 R-3287-SB10 0.50 1.50 0.61 5.50 5.11 2.6 D2 0.11 0.65 0.44 0.65 R-3286-8V 0.50 0.70 0.61 4.40 2.38 1.2 D3 0.2 0.69 0.84 1.25 R-3286-8V 0.50 0.70 0.61 4.40 2.38 1.2 D4 0.17 0.72 0.75 1.12 R-3286-8V 0.50 0.70 0.61 4.40 2.38 1.2 D5 0.14 0.58 0.49 0.73 R-3286-8V 0.50 0.70 0.61 4.40 2.38 1.2 D7 0.09 0.36 0.20 0.30 R-2750 0.50 1.80 0.61 8.30 6.13 3.1 D8 0.2 0.69 0.84 1.25 R-3286-8V 0.50 0.70 0.61 4.40 2.38 1.2 D9 0.11 0.45 0.30 0.45 R-2750 0.50 1.80 0.61 8.30 6.13 3.1 D10 0.29 0.60 1.07 1.60 R-3286-8V 0.50 0.70 0.61 4.40 2.38 1.2 D11 0.23 0.30 0.42 0.63 R-2750 0.50 1.80 0.61 8.30 6.13 3.1 Notes 1)Runoff = CIA 2)Assumed a 5 min inlet Time of Concentration Intensity 10-yr =6.12 in/hr Intensity 100-yr =9.12 in/hr 3)Grate Capacity Lesser of Q=3.3*P*H3/2 & Q=0.6*A*(2*32.2*H)1/2 4)Open Area* (sf) MH Neenah R-2750 1.80 MH Neenah R-3286-8V 0.70 MH Neenah R-3287-SB10 1.50 MH Neenah R-3472 1.30 Concrete End Section CES - *Open Area & Entrance Perimeter values obtained from Neenah 5)Casting types on STR's EX1 & EX2 are assumed. Proposed conditions will reduce the drainage area to these structures, creating more inlet capacity than the existing conditions. 5.50 7.30 - INLET CAPACITY CALCULATIONS Entrance Perimeter* (ft) 8.30 4.40 Date:Project:Storm:10-YR By:CDC Line Length Incr.Area Total Area Runoff Coeff.Inlet Time Time Conc Rnfal Int Total Runoff Adnl Flow Total Flow Capac Full Full Flow Velocity Pipe Size Pipe Slope Inv Elev Dn Inv Elev Up HGL Dn HGL Up Grnd/Rim Dn Grnd/Rim Up (ft)(ac)(ac)(C)(min)(min)(in/hr)(cfs)(cfs)(cfs)(cfs)(ft/s)(in)(%)(ft)(ft)(ft)(ft)(ft)(ft) 1 Outfall 54.817 0.11 0.31 0.65 0.07 0.21 5 5.9 5.9 1.26 0 1.26 7.43 4.20 0.013 18 0.5 815.62 815.89 816.04 816.31 819.65 820.59 D2 TO EX1 2 Outfall 54.512 0.17 0.3 0.72 0.12 0.2 5 6.1 5.9 1.18 0 1.18 7.43 4.20 0.013 18 0.5 814.81 815.08 815.21 815.49 820.24 820.55 D4 TO EX2 3 1 58.262 0.2 0.2 0.69 0.14 0.14 5 5 6.1 0.84 0 0.84 2.52 3.21 0.013 12 0.5 816.39 816.69 817.09 817.14 820.59 820.71 D3 TO D2 4 Outfall 28.763 0 0.91 0 0 0.46 0 7.5 5.6 2.58 0 2.58 10.44 5.91 0.013 18 0.99 814.61 814.89 815.12 815.5 820.24 820.99 D6 TO EX2 5 4 54.364 0.09 0.28 0.36 0.03 0.17 5 6.3 5.9 0.97 0 0.97 3.56 4.54 0.013 12 1 814.99 815.54 815.5 815.95 820.99 820.49 D7 TO D6 6 5 82.027 0.2 0.2 0.69 0.14 0.14 5 5 6.1 0.83 0 0.83 2.1 2.68 0.013 12 0.35 816.31 816.59 817 817.08 820.49 820.59 D8 TO D7 7 4 42.977 0.11 0.4 0.45 0.05 0.22 5 5.5 6 1.34 0 1.34 3.56 4.54 0.013 12 1 815.55 815.97 815.97 816.46 820.99 820.23 D9 TO D6 8 7 40.521 0.29 0.29 0.6 0.17 0.17 5 5 6.1 1.07 0 1.07 3.56 4.54 0.013 12 1 816.07 816.48 816.46 816.91 820.23 820.48 D10 TO D9 9 4 80.722 0.23 0.23 0.3 0.07 0.07 5 5 6.1 0.42 0 0.42 3.56 4.54 0.013 12 1 815.75 816.56 815.99 816.83 820.99 820.56 D11 TO D6 10 2 40.226 0.14 0.14 0.58 0.08 0.08 5 5 6.1 0.49 0 0.49 3.56 4.54 0.013 12 1 815.58 815.98 815.83 816.27 820.55 820.61 D5 TO D4 Program: Hydraflow Line IDTotalC x A Mannings "n" ValueLine To Line IncrC x A 2/26/2025 CARMEL GATEWAY EAST LAWN Engineer's Opinion of Probable Construction Cost Name:Carmel Gateway East Lawn Date:2/28/2025 Client:Context Design Prepared By:BAS Item Description Unit Quantity Unit Price Cost 1 Temporary Seed SF 53,143 0.10$ 5,314.32$ 2 Construction Entrance LS 1 5,000.00$ 5,000.00$ 3 Stockpile Silt Fence LF 280 1.10$ 308.00$ 4 Filter Sock LF 400 3.00$ 1,200.00$ 5 Erosion Control Blanket SY 0 2.00$ -$ 6 Temporary Concrete Washout EA 1 1,000.00$ 1,000.00$ 7 Inlet Protection EA 19 150.00$ 2,850.00$ Total Estimated Cost 15,672.32$ Stormwater Operations and Maintenance Manual Carmel Gateway East Lawn – Carmel, IN Prepared for: Rubenstein Partners C/O – RPO Property Management, LLC 600 E 96th Street, STE 150 Indianapolis, IN 46240 Prepared by: Kimley-Horn and Associates, Inc. 500 East 96th Street, Suite 300 Indianapolis, Indiana 46240 Contact: Bryan Sheward, PE I affirm, under penalties for perjury, that I have taken reasonable care to redact each Social Security number in this document, unless required by law. – Bryan Sheward Prepared on: February 28, 2025 Revised on: March 4, 2025 Water Quality BMPs Water Quality Best Management Practices (BMPs) are vegetative, structural, and other measure s that reduce or eliminate pollutants that might otherwise be carried by surface runoff. Potential pollutant sources include litter form patrons and automobile fluids on the pavement including heavy metals, oil, grease, and alcohols. The stormwater for the site drains via sheet flow to a proposed storm network that discharges into an underground detention system prior to releasing into existing city storm sewer system to the south of the site. There are no existing known BMPs for Carmel Gateway East Lawn. FlexStorm Pure FX Inlet Filter Bags are proposed for post-construction BMPs for the Carmel Gateway East Lawn and should be maintained per manufacturers specifications and the City of Carmel’s standards. See Attachment B for manufacturers Inlet Filter Operation and Maintenance Guide. BMP Owner Contact Information and Billing Contact Name: Parkwood Eight, LLC Contact: Patrick Moyers Address: 600 E. 96th St., STE 150, Indianapolis, Indiana 46240 Business Phone Number: (317) 735-5272 Party Responsible The BMP owner agrees to pay all the fees required by the City of Carmel, including annual inspection fees, and/or any additional fees required. Routine inspections are the responsibility of the BMP owner. Maintenance is also the responsibility of the owner. The City of Carmel must be notified of any changes in BMP ownership, major repairs, or BMP failures in writing within 30 days. The letter should be addressed to: Storm Water Program Carmel Engineering Dept. One Civic Square Carmel, IN 46032 In the event that the City of Carmel finds a BMP in need of maintenance or repair, the City of Carmel will notify the BMP owner of the necessary maintenance or repairs and give the BMP Owner a timeframe for completing the maintenance or repairs. If the maintenance or repairs are not completed within the designated timeframe, the City shall perform the repairs or maintenance and bill the BMP Owner the actual cost of the work. Submittal of annual inspection reports to the City of Carmel Engineering are due one year after construction is completed, with subsequent reports due each year within the same month of the initial report, any deficiencies found during the inspections should be addressed, and the BMP owner faces enforcement action from the City if the inspection report is not received within the month it is due, if there are deficiencies which were not included in the report, or if any deficiencies included in the report are not addressed in a timely manner. Material Handling Disposal of waste from maintenance of drainage facilities shall be conducted in accordance with federal, state, and local regulations. Removed sediment must be handled and disposed of in the garbage as solid waste. Water should be disposed of in a sanitary sewer after oils are removed using oil absorbent materials or other mechanical means. Used oil absorbents should be recycled or disposed according to the manufacturer’s instructions. Safety Work inside underground structures requires special OSHA-required confined space equipment and procedures. The most practical option to perform maintenance or repairs is to contract with a sewer- cleaning contractor Storm Structure Maintenance and Inspection Storm structures on site are identified within the construction plans set. Storm structures are set at storm sewer pipe connections. Unless you have OSHA approved training and equipment, never enter a manhole. Inspection and maintenance of all storm structures is required per the table below. Storm Structure Maintenance and Inspection Inspection All inlet castings should be inspected every 6 months and after each major rainfall event. More frequent inspections should be performed in areas where there is higher potential for trash or litter and during the fall when leaves are present on the ground. Check the frame and lid for cracks and wear, such as rocking lids or lids moved by traffic. Storm structures and the surrounding areas should be inspected annually for pollutants such as leaks from dumpsters, minor spills, and oil dumping. Take action to have the pollutant source removed. Cleaning Clean structures when there is a blockage of a water flow path or when sediment depth reaches 10% of the pipe diameter. Cleaning should be performed in a way that ensures removed sediment and water is not discharged back into the storm sewer. Materials Handling Disposal of waste from maintenance of drainage facilities shall be conducted in accordance with federal, state, and local regulations. Removed sediment must be disposed in the garbage as solid waste. Water should be disposed of in a sanitary sewer after oils are removed using oil absorbent materials or other mechanical means. Used oil absorbents should be recycled or disposed according to the manufacturer's instructions. Repairs Repair all security and access features so they are fully functional. This includes locking lids, covers, and ladder rungs. Replace broken parts or lids that rock or are moved by traffic. Storm Sewer Maintenance and Inspection Storm sewer pipes convey stormwater. Pipes are built from many materials and are sometimes perforated to allow stormwater to infiltrate into the ground. Storm pipes are cleaned to remove sediment or blockages when problems are identified. Storm pipes must be clear of obstructions and breaks to prevent localized flooding. Storm sewer maintenance and inspection required per the table below. Storm Sewer Maintenance and Inspection Inspection Pipes are difficult to inspect requiring special equipment and training. Usually, if a problem occurs the owner needs to call a sewer or plumbing contractor to inspect, repair or clean pipelines. Cleaning Clean pipes when sediment depth is greater than 10% of the pipe diameter. When cleaning a pipe, minimize sediment and debris discharges from pipes to the storm sewer. Install downstream debris traps (where applicable) before cleaning and then remove material. Generally, use mechanical methods to remove root obstructions from inside storm sewer pipes. Do not put root-dissolving chemicals in storm sewer pipes. If there is a problem, remove the vegetation over the line. Materials Handling Sediment and debris from pipes should be disposed in the garbage as solid waste. Pick out any rocks first. Repairs Repair or replace pipes when a dent or break closes more than 20 percent of the pipe diameter. Repair or replace pipes damaged by deterioration. Underground Detention System Maintenance and Inspection The underground detention system will need to be regularly inspected and maintained to ensure adequate performance. INSPECTION AND MAINTENANCE SCHEDULE Structure / Unit Inspection Maintenance Storm Structure Maintenance Monthly & After Rain Events Accumulate 6” of sediment Conveyance Maintenance (Storm Sewer) When Problems Occur Accumulate 6” of sediment Swale Every 6 Months Accumulate 6” of sediment Underground Detention System Every 6 Months Per Manufacturer’s Recommendations Turf Vegetative Coverage All non-paved areas that are not landscaped shall be vegetated to prevent erosion and sediment buildup in storm sewer facilities onsite or downstream of the project site. Seed shall be reapplied as required to establish healthy, dense coverage. The following Operation & Maintenance (O & M) procedures are the specific responsibilities for the owner. Refer to the Tabular Maintenance Schedule included in Attachment A of this report for maintenance requirements. Right of Entry This Operation and Maintenance Manual is submitted to the City with the intent to ensure the longevity and adequate functioning of the BMPs owned by Parkwood Eight, LLC. By submitting this Operation and Maintenance Manual to the City of Carmel with plans to construct said BMPs, the BMP owner noted above grants personnel from the City of Carmel the right to enter the development to inspect and maintain the BMP. The BMP owner noted above agrees to follow and abide by the inspection schedule and maintenance activities listed in this manual. The BMP owner noted above is responsible for any additional maintenance and/or repair activities to maintain the function and longevity of the BMPs. Owner Acknowledgement Signature Date Printed STATE OF _______________) ) SS: COUNTY OF ____________ ) BEFORE ME THE UNDERSIGNED NOTARY PUBLIC, IN AND FOR THE SAID COUNTY AND STATE, PERSONALLY APPEARED _____________________ AND ACKNOWLEDGED THE EXECUTION OF THE FORGOING INSTRUMENT AS THEIR VOLUNTARY ACT AND DEED. WITNESS MY HAND AND NOTARY SEAL THIS _____ DAY OF ____________________, 2023. SIGNATURE: _____________________ PRINTED NAME: ___________________ MY COMMISSION EXPIRES: ______________ COUNTY OF RESIDENCE: _______________ Owner Acknowledgement Agreement (“Agreement”) For good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the undersigned owner (“Owner”) hereby submits this Operation and Maintenance Manual (“Manual”) to the City of Carmel, Indiana (“City”) as a written acknowledgement of Owner’s warranty and agreement to institute, maintain, and follow the water quality Best Management Practices (“BMPs”) listed below, and to follow and abide by the inspection schedule and maintenance activities listed in this Manual. The Owner also hereby agrees to provide, at Owner’s cost, all additional maintenance, repair, and/or replacement services reasonably necessary to maintain the function and longevity of the BMPs from and including the date this Agreement is executed by Owner to and including the date on which a new Agreement is filed with the City by another party who assumes all the obligations and responsibilities of Owner as set forth herein. Owner Acknowledgement Signature Date Printed STATE OF _______________ ) ) SS: COUNTY OF ____________ ) BEFORE ME THE UNDERSIGNED NOTARY PUBLIC, IN AND FOR THE SAID COUNTY AND STATE, PERSONALLY APPEARED _____________________ AND ACKNOWLEDGED THE EXECUTION OF THE FORGOING INSTRUMENT AS THEIR VOLUNTARY ACT AND DEED. WITNESS MY HAND AND NOTARY SEAL THIS _____ DAY OF ____________________, 2025. SIGNATURE: _____________________ PRINTED NAME: ___________________ MY COMMISSION EXPIRES: ______________ COUNTY OF RESIDENCE: _______________ List of Attachments Attachment A: Storm Sewer and Structure Inspection and Maintenance Logs Attachment B: Inlet Filter Operation and Maintenance Guide Attachment A: Storm Sewer and Structure Inspection and Maintenance Logs Storm Sewers and Storm Structures Operation, Maintenance, and Management Inspection Checklist Project: Location: Date: Time: Inpsector: Title: Signature: Visual evidence of broken or cracked frame or casting? Clear of debris? Debris within structure? 2. Condition of Frame and Casting 1. Structural Condition Any indications of structural failure? Pipes are clear of debris? Storm Structures Maintenance Item Satisfactory / Unsatisfactory Comments Storm Sewers 1. Structural Condition & Capacity CommentsSatisfactory / UnsatisfactoryMaintenance Item Indications of deformed or sagging pipes? Surcharges onsite to indicate a blockage? Maintenance Standards derived from the Washington State Department of Ecology’s Stormwater Management Manual for Eastern Washington (September 2004). Page 5 Maintenance Standards Conveyance Systems (Pipes and Ditches) Maintenance Code Type Conditions When Maintenance Is Needed 1 Sediment Sediment or debris exceeds 20% of pipe diameter or 20% of debris barrier openings. Accumulated sediment that exceeds 20% of the design depth of the ditch. 2 Trash & Debris Trash and debris accumulated in pipe or ditch. Visual evidence of dumping 3 Vegetation Vegetation reduces movement of water through pipes. Excessive vegetation that reduces free movement of water through ditches. 4 Water Quality Any evidence of oil, gasoline, contaminants or other pollutants. Water flowing in pipes or ditch during dry weather – report as potential illicit discharge concern. 5 Water Flow Impeded water flow due to vegetation or sediment (use appropriate code from above). Standing water in the pipe or swale between storm events. 6 Erosion Erosion damage over 2 inches deep where cause is still present or there is potential for continued erosion. Native soil is visible beneath the rock lining of a conveyance ditch. 7 Cover/Frame/ Grate N/A 8 Structure Debris barrier/trash rack is missing or not attached to pipe. Debris barrier/trash rack bars are bent by more than 3 inches. Debris barrier/trash rack bars are loose or rust is causing 50% deterioration to any part of the barrier. 9 Damaged Pipes Protective coating is damaged or rust is causing more than 50% deterioration to any part of pipe. Any dent that decreases the flow area by more than 20% or puncture that impacts performance. 10 Mosquito Vector Breeding Suitable habitat exists for mosquito production (e.g. standing water for more than 72 hours in areas accessible to mosquitoes.) 11 Other 12 Could Not Locate Field inspectors are unable to locate the pipe or ditch. Attachment B: Inlet Filter Operation and Maintenance Guide Advanced Drainage Systems, Flexstorm Inlet Filters 24137 W. 111th St. Unit A Naperville, IL 60564 ADS Flexstorm Inlet Filters Operation and Maintenance Guide Date Task Performed Initials __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ __ /__ /__ Installation Instructions: 1. Remove grate from the inlet. 2. Clean debris from the ledges of the inlet. 3. Place the inlet filter onto the load bearing ledges of the structure. 4. Replace the grate and confirm it’s not elevated more than 1/8”. Frequency of Inspections: 1. Inspection should occur following rain events >½”. 2. Temporary use filters should be monitored accordingly to current site runoff conditions. 3. Permanent use filter inspections to occur a minimum of 3 times per year and in snowfall affected regions, inspections prior to and after snowfall season. 4. Industrial application site inspections (loading ramps, wash racks & maintenance facilities) to be scheduled on a recurring basis no less than 4 times per year or as needed. Maintenance Guidelines: 1. Empty the filter bag manually or by industrial vacuum taking care not to damage the geotextile bag when more than half filled or during scheduled inspection period. 2. Remove compacted silt from sediment bag and flush with medium spray. 3. Permanent filter “PCP” style bags should be pressed or wrung to recover retained oils. 4. Cleartec oil skimmer pouches solidify and darken when saturated, indicating time for replacement. 5. Dispose of all oil contaminated products and recovered oils in accordance with EPA guidelines. Cleartec pouches, since a solidifier, will not leach and can be disposed of directly. 6. Inspect and replace bag if torn or punctured. Sediment Bag Replacement: 1. Remove the bag by loosening or cutting off clamping band. 2. Take the new correctly sized sediment bag and secure hose clamping band to the frame channel as previously removed. 3. Ensure Bag is secure and there is no slack around perimeter. Inlet ID: ______________ Advanced Drainage Systems, Flexstorm Inlet Filters 24137 W. 111th St. Unit A Naperville, IL 60564 Figure 1 ADS Flexstorm Inlet Filters Replacement Bag Guide After following the Flexstorm Operation and Maintenance Guide and performing routine maintenance, you may notice damage or degradation of the inlet filter’s geotextile bag. This will require replacement of the geotextile bag portion of your inlet filter device. Both the Flexstorm Pure (permanent) and Catch-it (temporary) are applicable filters for replacement bags. If a Lite filter is damaged, please replace the entire filter unit. Sizing the New Replacement Bag: 1. Locate the inlet filter’s label attached on the inside visible perimeter of the filter frame. A. Note the bag size and style listed: (##” x ##” & STYLE) as highlighted in Figure 1. OR 2. If the label cannot be located, please remove the filter from the inlet and take off the existing bag. Measure the length and width of the frame perimeter retaining the bag’s hose clamp as shown in Figure 2. Note, if your filter is round, please provide the outer diameter of the bottom framing channel. A. It is necessary to also provide the bag style that was originally provided on the filter. If this is a Catch- it, you will have the standard “FX” bag. If this is a Pure, there will be a series of options for replacement bags pertaining to treatment properties required (“FX”, “FXP”, or “PCP”). Sediment Bag Replacement: 1. Remove the bag by loosening or cutting off clamping band. 2. Take the new correctly sized geotextile bag and secure the hose clamping band to the frame channel as previously removed. 3. Ensure Bag is secure and there is no slack around perimeter. Figure 2 1 1 2 2 3 3 4 4 A A B B C C D D N/ASCALE ADVANCED DRAINAGE SYSTEMS FLEXSTORM INLET FILTERS, INC. WWW.ADSPIPE.COM PH. 1-800-821-6710 Pure Nyloplast Submittal DATE C 7/11/2022 DWG NO REV A SIZE SHEET 1 OF 1 ADS FLEXSTORM PURE INLET FILTERS FOR NYLOPLAST BASINS BYPASS AREA STAINLESS STEEL FRAMING REPLACEABLE GEOTEXTILE BAG NOTES: 1. ALL FRAMING IS CONSTRUCTED OF 304 STAINLESS STEEL FOR 25 YEAR SERVICE LIFE RATING. 2. TOTAL BYPASS CAPACITY WILL VARY WITH EACH SIZE DRAINAGE STRUCTURE. ADS DESIGNS FRAMING BYPASS TO MEET OR EXCEED THE DESIGN FLOW OF THE PARTICULAR DRAINAGE STRUCTURE. 3. UPON ORDERING, CONFIRMATION OF THE INLET SPECIFICATION, PRECAST/FOUNDRY CASTING MAKE AND MODEL, OR DETAILED DIMENSIONAL FORMS MUST BE PROVIDED TO CONFIGURE AND ASSEMBLE AN INLET FILTER. 4. ALL FILTERS MEET ASTM D8057 SPECIFICATIONS 5. FOR WRITTEN SPECIFICATIONS AND MAINTENANCE GUIDELINES VISIT WWW.ADSPIPE.COM INSTALLATION INSTRUCTIONS: 1. REMOVE GRATE. 2. CLEAN GRATE LEDGE 3. SET INLET FILTER ON ONTO LOAD BEARING LEDGE OF STRUCTURE. 4. REPLACE GRATE. • • • • • • • • • • • • • • • 1. 2. 3. 4. 1. 2. 3. 1. 2. 3. 4. 5. 6. 1. 2. 3. Engineer's Opinion of Probable Construction Cost Name:Carmel Gateway East Lawn Date:4/28/2025 Client:Context Design Prepared By:BAS Item Description Unit Quantity Unit Price Cost 1 Temporary Seed SF 53,143 0.10$ 5,314.32$ 2 Construction Entrance LS 1 5,000.00$ 5,000.00$ 3 Stockpile Silt Fence LF 280 1.10$ 308.00$ 4 Filter Sock LF 1,222 3.00$ 3,666.00$ 5 Erosion Control Blanket SY 0 2.00$ -$ 6 Temporary Concrete Washout EA 1 1,000.00$ 1,000.00$ 7 FlexStorm Pure FX Inlet Protection Filters EA 20 700.00$ 14,000.00$ 8 SOD SY 1,330 9.00$ 11,970.00$ Total Estimated Cost 41,258.32$ kimley-horn.com 500 East 96th Street, Suite 300, Indianapolis, IN 46240 317-218-9560 February 28, 2025 City of Carmel Engineering Department - Office of Stormwater John Thomas – Stormwater Administrator Carmel City Hall One Civil Square, Carmel, IN 46032 RE: Waiver Request for Stormwater Quality and Detention Carmel Gateway East Lawn Dear Mr. Thomas, Please accept this letter as a formal request for waivers from the Carmel stormwater quality and detention requirements for our Carmel Gateway East Lawn Project (“project”) located at 800 E & 900 E 96th St, Indianapolis, IN 46240. After reviewing the scope of the proposed project and considering the existing site conditions, we believe our project will meet the overall intent of Carmel’s stormwater ordinance and we kindly request your approval. The project site currently has an existing underground detention system, which was designed to handle stormwater runoff for the area per the governing stormwater ordinance requirements in effect at the time the site was developed in the early 2000’s. Our proposed project will reduce the overall runoff to the existing stormwater system by removing impervious asphalt surface and replacing it with pervious natural turf and landscaping. As such, we are not proposing any additional detention measures, as the existing detention system is sized to adequately handle the existing flows. Additionally, there are no known existing stormwater quality Best Management Practices (BMPs) in place to treat stormwater runoff prior to its entry into the existing subsurface storm system. Given the reduction in impervious surface within the project limits, we are not proposing any new stormwater quality BMPs. The reduction in impervious area and the natural elements incorporated into the design, including proposed turf and gentle slopes in the lawn area, will effectively help reduce the velocity of runoff. This design will allow for natural filtration and treatment of runoff prior to collection in the existing stormwater system, further supporting the overall water quality of the site. In conclusion, our project’s approach will result in a net reduction in impervious surface area, thus leading to a decrease in stormwater runoff. The existing underground detention system will adequately accommodate this reduced runoff, and the natural landscaping will contribute to improving runoff quality. We respectfully request a waiver from the stormwater quality and detention requirements, as we believe the current conditions and our proposed measures align with the goals of effective stormwater management. We appreciate your time and consideration of this waiver request. Should you have any questions, please feel free to contact me at 317-218-9563. We look forward to your response. Sincerely, Kimley-Horn and Associates, Inc. Bryan A. Sheward, PE Project Manager Department of Community Services One Civic Square, Carmel, IN 46032 Phone: 317.571.2417, web: carmeldocs.com Michael P. Hollibaugh, Director SUE FINKAM, MAYOR L E T T E R of G R A N T January 28, 2025 Bryan Sheward Kimley- Horn 500 E. 96th Street Ste. 300 Indianapolis, IN 46240 Re: BZA Docket No. PZ-2024-00240 V: Parkwood Crossing East Parking Variance. Dear Mr. Sheward: At the meeting held on Monday, January 27, 2025, the Carmel Board of Zoning Appeals Hearing Officer took the following action regarding the Development Standards Variance (V) request filed by you for the property located at 900 & 800 E. 96th Street: APPROVED: Parkwood Crossing East Parking Variance - Development Standards Variance approval for: • PZ-2023-00240 V: Parking Ratio: 3.5 parking spaces / 1,000 SF of gross floor area required; 2.90 spaces / 1,000 SF granted. Please be advised that per Article 9.15 of the Unified Development Ordinance, the aforementioned Development Standards Variance approval is valid for three (3) years. By that time, either continuous construction of the improvements must be underway, or a written request for a one-time, six-month extension of the approval must have been received and approval granted by this Department. The expiration date of the approval is Jan. 27, 2028. Please include a copy of this letter with any permit application. If I can be of any further assistance, please do not hesitate to contact me at 317-571-2417 or aconn@carmel.in.gov. Sincerely, Angie Conn, AICP Planning & Zoning Administrator Division of Planning & Zoning cc: Carmel Engineering Department Carmel Building & Safey Department File kimley-horn.com 500 East 96th Street, Suite 300, Indianapolis, IN 46240 317-218-9560 April 11, 2025 City of Carmel Engineering Department - Office of Stormwater John Thomas – Stormwater Administrator Carmel City Hall One Civil Square, Carmel, IN 46032 RE: Waiver Request for Stormwater Quality Carmel Gateway East Lawn Dear Mr. Thomas, Please accept this letter as a formal request for a waiver from the Carmel stormwater quality requirements for our Carmel Gateway East Lawn Project (“project”) located at 800 E & 900 E 96th St, Indianapolis, IN 46240. After reviewing the scope of the proposed project and considering the existing site conditions, we believe our project will meet the overall intent of Carmel’s stormwater ordinance and we kindly request your approval. The proposed project will reduce the overall runoff to the existing stormwater system by removing impervious asphalt surface and replacing it with pervious natural turf and landscaping. Currently, there are no known existing stormwater quality Best Management Practices (BMPs) in place to treat stormwater runoff prior to its entry into the existing subsurface storm system. The reduction in impervious area and the natural elements incorporated into the design, including proposed turf and gentle slopes in the lawn area, will effectively help reduce the velocity of runoff. This design will allow for natural filtration and trea tment of runoff prior to collection in the existing stormwater system, further supporting the overall water quality of the site. Due to the absence of existing BMPs within the project area, we propose installing permanent FlexStorm Pure FX inlet filters as a stormwater quality measure. These units feature a stainless-steel frame with a replaceable geotextile filter bag secured by a locking band. The bag hangs below the grate and allows full bypass flow into the drainage structure if completely filled with sediment. The filters are rated at 200 gpm/sqft with an 85% TSS removal efficiency. In conclusion, the project will result in a net reduction in impervious surface area, leading to decreased stormwater runoff. Natural landscaping and the proposed inlet filters will further enhance runoff quality. We respectfully request a waiver from the stormwater quality requirements, as we believe our proposed measures align with the goals of effective stormwater management. We appreciate your time and consideration of this waiver request. Should you have any questions, please feel free to contact me at 317-218-9563. We look forward to your response. Sincerely, Kimley-Horn and Associates, Inc. Bryan A. Sheward, PE Project Manager kimley-horn.com 500 East 96th Street, Suite 300, Indianapolis, IN 46240 317-218-9560 April 11, 2025 City of Carmel Engineering Department - Office of Stormwater John Thomas – Stormwater Administrator Carmel City Hall One Civil Square, Carmel, IN 46032 RE: Waiver Request for Stom Water Detention Carmel Gateway East Lawn Dear Mr. Thomas, Please accept this letter as a formal request for a waiver from the Carmel stormwater detention requirements for our Carmel Gateway East Lawn Project (“project”) located at 800 E & 900 E 96th St, Indianapolis, IN 46240. After reviewing the scope of the proposed project and considering the existing site conditions, we believe our project will meet the overall intent of Carmel’s stormwater ordinance and we kindly request your approval. The project site currently has an existing underground detention system, which was designed to handle stormwater runoff for the area per the governing stormwater ordinance requirements in effect at the time the site was developed in the early 2000’s. Our proposed project will reduce the overall runoff to the existing stormwater system by removing impervious asphalt surface and replacing it with pervious natural turf and landscaping. As such, we are not proposing any additional detention measures, as the existing detention system is sized to adequately handle the existing flows. In conclusion, our project’s approach will result in a net reduction in impervious surface area, thus leading to a decrease in stormwater runoff. The existing underground detention system will adequately accommodate this reduced runoff. We respectfully request a waiver from the stormwater detention requirements, as we believe the current conditions and our proposed measures align with the goals of effective stormwater management. We appreciate your time and consideration of this waiver request. Should you have any questions, please feel free to contact me at 317-218-9563. We look forward to your response. Sincerely, Kimley-Horn and Associates, Inc. Bryan A. Sheward, PE Project Manager