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Home My WebLink AboutSDP202000025 Review Comments Initial Site Plan 2020-05-06Phone (434) 296-5832 Project: Project file number: Plan preparer: Owner or rep. Applicant: Plan received date: Date of comments: Reviewer: Project Coordinator: COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road, Room 227 Charlottesville, Virginia 22902-4596 Fax (434) 972-4126 Site Plan review Airport Road Sheetz - ISP SDP2020-00025 Daniel Hyer, PE / Line and Grade, 113 411 St. NE, Suite 100 Charlottesville, VA 22902 dh er0jine-grade.com Airport Plaza LLC / 5029 Stony Point Road, Barboursville, VA 22923 Airport Auto Investments, LLC / 600 E. Water St., Suite H Charlottesville, VA 22902 31 Mar 2020 6 May 2020 John Anderson Paty Satemye Engineering review comments / required for Final Site Plan approval: 1. Please restore sheets C6.1 and C6.2 to Final Site plan. Utility profiles and details should be included. 2. Restore sheets C4.1, C4.2, C4.3, needed for site plan review. 3. Restore sheet CO. 1, General Construction Notes. 4. Once these sheets are restored, additional review comments are possible. 5. An approved VSMP /WPO plan is required prior to Final Site Plan approval. 6. A recorded SWM facility /public drainage easement plat is required prior to WPO plan approval. 7. C3.0 (Traffic Plan): a. Sheetz fuel tanker entering from Airport Rd, WBL: Driver will likely not know in advance that Sheetz fuel tanker must occupy 4'-5' of inside WBL of Airport Rd. to avoid curb on -site. Image, below, p. 3. Auto -turn fig. indicates fuel tanker entering the site from this direction will entirely occupy the site -to -Airport Rd exit lane. Fuel tanker's path may conflict with a vehicle exiting car wash, or site. Please examine option of shifting fuel loading and delivery zone to back of site, relative to Airport Road. Current Airport Rd. site entry -exit design and fuel loading and delivery zone locations present conflicts: i. 15 parking spaces east of fuel dispensing islands (spaces #33 — 47): 1. For vehicles exiting fueling area to site -exit on Airport Road, if fuel tanker occupies proposed fuel loading /delivery zone, there is a conflict. 2. For Sheetz fuel tanker that has entered the site from Airport Rd, there is possible conflict with car parked in space 433, or with vehicles exiting fueling area, or possibly with fueling space canopy structure, or protective bollard/s. b. Of major site elements (underground fuel tanks, fueling space, store, car wash, bioretention), Engineering encourages review of site objectives. Please examine alternative locations for major site elements to limit conflicts. This site presents a number of potential traffic -traffic, traffic - tanker, traffic -pedestrian conflicts. Initial site plan design reflects thought, effort, and expense; it may be too late for substantial redesign, but certain improvements may be possible. Given investment in design, certain alternatives are less -likely possibilities. Possibilities: i. UG fuel tanks should be at a lower elevation, if possible. This area may not be upslope of bioretention with infiltration. Infiltration is not a suitable SWM practice for possible Engineering Review Comments Page 2 of 4 petroleum -laden runoff, which is a possibility at a large-scale commercial re -fueling station. If UG fuel tanks occupy a lower elevation, it may be possible to isolate runoff from the surface of the UG fuel tank area, treat it to remove petroleum fraction (injurious to bioretention) prior to routing runoff to bioretention (or other) infiltration practice. As proposed, runoff from the UG fuel tank area (a site high point /higher elev.) is collected, routed to an underground SWM detention system, and then routed to bioretention filter B. ii. Please consider whether multiple C3.0 traffic /pedestrian patterns are a best alternative. ARB, Planning, Zoning (setback) requirements affect design, but on -site circulation appears problematic, given current location of major site elements (below): 1. Purple —store 2. M —car wash 3. Yellow —drive-thru 4. _ —bioretention 5. Orange —Sheetz fuel tanker 6. — —commercial fueling space IZ I - �i. Alt f "-----------f P d If t 1 a I j li I ii wn�xari iii. For example: would switching the fueling space and store offer any benefit, or work? iv. Would shifting proposed UG fuel tanks to back of site relative to Airport Road address tanker entry conflict points at entry /exit from Airport Road? v. Is space available between parking spaces 33-47 and Rt. 29 to relocate bioretention filter B from back of site to this location? vi. Please examine alternative site layouts in effort to minimize traffic -traffic conflicts, traffic -pedestrian conflicts, and to protect biofilters. Engineering Review Comments Page 3 of 4 � 77� /I z y � T\11115 _ SKMn HIES 7ATE RWTF 649 (AA-CRF AV) A!B TRAFFIC AND TRUCK ROUTING PLAN r•m o m a �a M --> I EEH A vii. Please provide AASHTO W13-67 auto -turn fig. between points A and B, which appears the only travel path available for a fuel tanker entering the site, either from Airport Road or U.S. Rt. 29. A tanker entering either entry must exit via the other site entry point, but cannot enter and leave via the same site entry point. C4.0 8. Revise proposed R2' to R3' Min. [Final Site Plan checklist for plan reviewers, p. 2, parking and circulation, item 6.] 9. Provide curbing or trench drains to capture runoff and an oil /water separator to remove petroleum fraction in storm runoff prior to routing runoff from surface above underground fuel tanks or from vehicle fuel islands if bioretention with infiltration persists as a SWM on -site practice. Ref. VA DEQ Stormwater Engineering Review Comments Page 4 of 4 Design Specifications 9 (bioretention), and 8 (Infiltration). Design Spec. 8 specifically prohibits infiltration practices at `hot spots.' Ref. Spec. 8, p. 20, Sec. 10.2 Designation of Stormwater Hotspots; link: https://www.swbMp.vwrrc.vt.edI /wp-contegt/uploads/2017/11BMP-Spec-No-8_INFILTRATION_vl- 9 03012011.pdf 10. Provide handrail at top of retaining wall at dumpster enclosure if dumpster remains at this location (or provide screening fence). Safety railing is required for walls > 4' high, and proposed wall ht. > 9'. If screening fence (C8.0) is to be installed, please provide screening fence detail. 11. Recommend label CG-6 fronting parking /UG fuel tanks facing Airport Road spill curb. 12. Provide typ. parking space length for parking spaces #7 — 18. 13. Recommend eliminate parking space #7 (since overlaps HC parking space 6) and shift spaces 8 and 9 south to allow pavement markings to delineate a pedestrian access from parking spaces #33 thru 47 to storefront. Loss of one parking space to delineate pedestrian access of nearly 125' length from parking spaces 33 — 47 (beneath the center of fuel canopy) to safety of sidewalk fronting store is likely a worthwhile trade-off. C6.0 14. Show /label SWM Facility easement for bioretention filters A, B. 15. Provide public drainage easements for any inlets receiving flow from public roads, and for any pipes downstream of proposed on -site bioretention practices, or underground detention systems. 16. Relocate 15" DIA RCP between bioretention filter A and B to earth slope to reduce potential future conflict should pipes in public easement require maintenance replacement. Avoid placing storm pipe between bioretention filters A and B beneath: car wash drive aisle, curb, store drive-thru, and any other paved surfaces (to extent practical). General 17. A VDOT Land Use permit is required for any work within VDOT right-of-way. 18. Site must be accessible for ACF&R apparatus. Engineering defers to ACF&R. Please feel free to call if any questions: 434.296-5832 -0069 Thank you SDP2020-00025 Airport Road Sheetz ISP 050620