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Home My WebLink AboutSD-23-05 - Supplemental - 0760 Shelburne Road (59)1 Marla Keene From:Marisa Rorabaugh Sent:Tuesday, May 30, 2023 4:13 PM To:Marla Keene Subject:RE: SD-23-05 760 Shelburne Road - technical review Hi Marla, Please see updated stormwater comments below: 1. The swale conveying water to Bioretention 7 terminates in a 9-foot vertical drop over the top of the retaining wall into the bioretention. Please provide an appropriate inlet for water conveyed to the bioretention from the swale. I have replied on this thread because I noticed that the stormwater comments saved in the project folder are for a different project. My original comments are in the thread below. The applicant has addressed all our previous comments at this time. Let me know if you need anything else from me! Thanks, Marisa Marisa Rorabaugh Stormwater Superintendent Department of Public Works City of South Burlington 104 Landfill Road South Burlington, VT 05403 (802) 658-7961 Ext. 6111 www.sbvt.gov Notice - Under Vermont’s Public Records Act, all e-mail, e-mail attachments as well as paper copies of documents received or prepared for use in matters concerning City business, concerning a City official or staff, or containing information relating to City business are likely to be regarded as public records which may be inspected by any person upon request, unless otherwise made confidential by law. If you have received this message in error, please notify us immediately by return email. Thank you for your cooperation. From: Marla Keene <mkeene@southburlingtonvt.gov> Sent: Thursday, March 2, 2023 8:09 AM To: Marisa Rorabaugh <MRorabaugh@southburlingtonvt.gov> Cc: Dave Wheeler <dwheeler@southburlingtonvt.gov>; Tom DiPietro <tdipietro@southburlingtonvt.gov> Subject: RE: SD-23-05 760 Shelburne Road - technical review Thanks! These are absolutely appropriate for inclusion in the staff report. 2 There are at least three major issues not including those you’ve described below that are going to preclude the project from being closed quickly, so no worries about a redesign. Marla Keene, PE Development Review Planner City of South Burlington (802) 846-4106 From: Marisa Rorabaugh <MRorabaugh@southburlingtonvt.gov> Sent: Thursday, March 2, 2023 7:32 AM To: Marla Keene <mkeene@southburlingtonvt.gov> Cc: Dave Wheeler <dwheeler@southburlingtonvt.gov>; Tom DiPietro <tdipietro@southburlingtonvt.gov> Subject: RE: SD-23-05 760 Shelburne Road - technical review Good morning! Understood. I am happy to pass along the questions I have asked them. The stormwater design appears to be incomplete. Additionally, they did not include a stormwater maintenance plan and their EPSC controls are insufficient for a hotspot site. This is what I have asked the engineers at TCE: 1. How is pretreatment being provided for non-rooftop runoff? I don’t see it called out on the plans for DA 7 Bio, DA 3 Bio, or any of the Filterras. 2. The rim elevation for Outlet Structure 3 (Da 7 Bio) is called out as 216.75. Is this supposed to be 206.75? 3. Please provide a detailed maintenance plan for all BMPs and stormwater conveyance 4. EPSC plan: How will runoff be kept from exiting the site at the stabilized construction entrances along Shelburne Road? 5. Please provide detail on how the EPSC plan will adapt in conjunction with the demolition phasing. Will the entirety of Phase I be stabilized while demolition is taking place in Phase II? Will the stormwater system in the Phase I area be installed while Phase II demolition is taking place? If so, how will you ensure runoff from Phase II is contained? 6. Please provide detail on how contaminated runoff from Phase I will be contained and prevented from leaving the site I am still waiting to hear back from them, but the first question especially may require some redrafting on their part. I did also point out to them that the catch basin they are proposing to tie into is VTRANS-owned, rather than municipal as they asserted in their stormwater narrative. Please let me know if you need anything else at this time! Marisa Marisa Rorabaugh Stormwater Superintendent Department of Public Works City of South Burlington 104 Landfill Road South Burlington, VT 05403 (802) 658-7961 Ext. 6111 www.sbvt.gov 3 Notice - Under Vermont’s Public Records Act, all e-mail, e-mail attachments as well as paper copies of documents received or prepared for use in matters concerning City business, concerning a City official or staff, or containing information relating to City business are likely to be regarded as public records which may be inspected by any person upon request, unless otherwise made confidential by law. If you have received this message in error, please notify us immediately by return email. Thank you for your cooperation. From: Marla Keene <mkeene@southburlingtonvt.gov> Sent: Wednesday, March 1, 2023 10:11 PM To: Marisa Rorabaugh <MRorabaugh@southburlingtonvt.gov> Cc: Dave Wheeler <dwheeler@southburlingtonvt.gov>; Tom DiPietro <tdipietro@southburlingtonvt.gov> Subject: RE: SD-23-05 760 Shelburne Road - technical review Hey Marisa, thanks for letting me know. In general, we are looking for you to provide written comment suitable for inclusion in the staff report on the project to the Board. If those comments are sent to the applicant at the same time as they are sent to me, that is fine, but this should be a transparent process so that we are able to work with you to get applicants into compliance with the regulations. Sincerely, Marla Keene, PE Development Review Planner City of South Burlington (802) 846-4106 From: Marisa Rorabaugh <MRorabaugh@southburlingtonvt.gov> Sent: Friday, February 24, 2023 3:25 PM To: Marla Keene <mkeene@southburlingtonvt.gov> Subject: RE: SD-23-05 760 Shelburne Road - technical review Hi Marla, I want to let you know that I am in contact with the engineers on this project about a couple of design questions for stormwater. I will get our review comments to you as soon as possible following our discussion with them. Have a great weekend, Marisa Marisa Rorabaugh Stormwater Superintendent Department of Public Works City of South Burlington 104 Landfill Road South Burlington, VT 05403 (802) 658-7961 Ext. 6111 www.sbvt.gov 4 Notice - Under Vermont’s Public Records Act, all e-mail, e-mail attachments as well as paper copies of documents received or prepared for use in matters concerning City business, concerning a City official or staff, or containing information relating to City business are likely to be regarded as public records which may be inspected by any person upon request, unless otherwise made confidential by law. If you have received this message in error, please notify us immediately by return email. Thank you for your cooperation. From: Dave Wheeler <dwheeler@southburlingtonvt.gov> Sent: Wednesday, February 22, 2023 6:50 AM To: Marisa Rorabaugh <MRorabaugh@southburlingtonvt.gov> Cc: Marla Keene <mkeene@southburlingtonvt.gov> Subject: Fwd: SD-23-05 760 Shelburne Road - technical review Hi Marisa, Can you review and provide comments to Marla? Thanks, Dave Get Outlook for iOS From: Marla Keene <mkeene@southburlingtonvt.gov> Sent: Tuesday, February 21, 2023 10:11:49 AM To: Terry Francis <tfrancis@southburlingtonvt.gov>; Ed Spooner <espooner@southburlingtonvt.gov>; Dave Wheeler <dwheeler@southburlingtonvt.gov>; Craig Lambert <clambert@southburlingtonvt.gov>; Jay Nadeau <jay.nadeau@champlainwater.org>; Tom DiPietro <tdipietro@southburlingtonvt.gov> Subject: SD-23-05 760 Shelburne Road - technical review Hi Folks, The DRB will be reviewing the above-referenced application on Tuesday March 7. Please review and provide comments to me before the start of business on Monday February 27. Against our advice, they have submitted combined preliminary and final plat, so this will be the final review (though I anticipate the hearing will be continued over multiple meeting dates) Project Description: Preliminary and final plat application #SD-23-05 of Gary Bourne to create a General Planned Unit Development by re- subdividing three existing lots into three new lots of 0.18 acres (Lot 1), 0.14 acres (Lot 2), and 1.06 acres (Lot 3), and constructing a 3,350 sf financial institution on Lot 1, a 6,480 sf 2-story mixed commercial and residential building on Lot 2, and a 3-story 27-unit multifamily building on Lot 3, 760 Shelburne Road. Project folder (or navigate via sharepoint): SD-23-05_760 Shelburne Road_Bourne_2023-03-07 5 Marla Keene, PE Development Review Planner City of South Burlington 180 Market Street South Burlington, VT 05403 (802) 846-4106 www.southburlingtonvt.gov Notice - Under Vermont’s Public Records Act, all e-mail, e-mail attachments as well as paper copies of documents received or prepared for use in matters concerning City business, concerning a City official or staff, or containing information relating to City business are likely to be regarded as public records which may be inspected by any person upon request, unless otherwise made confidential by law. If you have received this message in error, please notify us immediately by return email. Thank you for your cooperation.