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HomeMy WebLinkAboutSDP201800085 Review Comments Final Site Plan and Comps. 2019-05-10COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road, North Wing Charlottesville, Virginia 22902-4596 Phone (434) 296-5832 Fax (434) 972-4126 Memorandum To: Ms. Riki Van-Niekerk, Roudabush, Gale & Associates, Inc. (rvan-niekerkkroudabush.com) Mr. Trey Steigman, Management Services Corporation (tstei ng langmsc-rents.com) From: Tim Padalino, AICP Division: Community Development — Planning Date: May 10, 2019 Subject: Review Comment Letter #2 — SDP-2018-00085 (Vistas at South Pantops — Final Site Plan) The plan referred to above (revision date 3/29/2019) has been reviewed by the Planning Services Division of the Albemarle County Department of Community Development (CDD) and by other members of the Site Review Committee (SRC). The Planner the will approve the plan referred to above when the following items (below, from the Planner and from other SRC plan reviewers) have been satisfactorily addressed and when all SRC plan reviewers have indicated in writing their tentative approvals. The following comments are those that have been identified as outstanding from the initial site plan review as well as those identified in reviewing the final plan (revision date 3/29/2019); additional comments or conditions may be added or eliminated based on further review. [Each comment is preceded by the applicable reference to the Albemarle County Code.] REQUIRED CHANGES: 1. [Z.O. Sec. 32.6.2(a), 32.5.2(a)] On Sheet 1, please amend the project number for this final site plan to "SDP2018-00085." Please also include the initial site plan project number (SDP2018-00008) on this sheet for reference purposes. Rev. Comm. #2: Addressed. 2. [Z.O. Sec. 32.6.1(b)] Please submit one (1) reduced copy of the final site plan no larger than I Ix17 inches in size. Rev. Comm. #2: Addressed. 3. [Z.O. Sec. 32.6.2(a), 32.5.2(a)] Review of the deed book records and County GIS indicate this parcel (78-20) is 13.12 acres in size, as compared to the 13.31 acres listed in the site plan. Please review and revise these values to conform with parcel records. Rev. Comm. #2: Addressed — staff acknowledge the 2017 boundary survey identifying the subject property as 13.308 acres (or 13.31 acres when rounded). 4. [Z.O. Sec. 32.6.2(a), 32.5.2(r)] The plans do not appear to adhere to, or include, many items included in the legend on Sheet 1. Please revise the legend and/or plans to be consistent with one another. Rev. Comm. #2: Addressed. 5. [Z.O. Sec. 32.6.2(a), 32.5.2(r)] Throughout the plan, please ensure that all identifying lines are labeled, by connected leader line or legend, and that they are easily distinguished from one another. Please pay particular attention to Sheets 2 and 7. Rev. Comm. #2: Addressed. [Z.O. Sec. 32.6.1(e)(6), 32.6.2(a), 32.5.1(c)(4)] Please provide horizontal dimensions for all proposed structures. Rev. Comm. #2: Addressed. [Z.O. Sec. 32.6.2(a), 32.5.2(s)] With regard to utilities noted on Sheet 6, please include notes if any lines will be demolished, disturbed, or relocated during construction. Rev. Comm #2: Addressed — staff acknowledge additional demo notes on Sheet 2 (Existing Conditions & Demo Plan) and Sheet 5 (Utility Plan). 8. [Z.O. Sec. 32.6.2(g)] Please ensure that all existing and proposed public easements are identified in the plans. Rev. Comm. #2: Addressed. 9. [Z.O. Sec. 32.6.2(a), 32.5.2(s)] Please identify each easement as public or private. Rev. Comm. #2: Addressed. 10. [Z.O. Sec. 32.6.2(a), 32.5.2(1), 32.5.2(o)] Prior to final site plan approval, it is necessary to obtain County approval of a plat showing all proposed easements (such as utility easements, stormwater management facility easements, and public use recreation easements) as well as all areas intended for dedication to the County for public use. The platting of easements and lands to be dedicated to the County for public use can be processed all together in one plat application, or separately, however the applicant prefers. Rev. Comm. #2: Not addressed. However, staff acknowledge applicant's intentions to revise Special Lot Plat SUB201800176; and staff anticipate submission of a separate easement plat (with corresponding legal documents) to establish new required easements and new proposed easements (and to show existing easements). Please also see review comments #31 and #34. 11. [Z.O. Sec. 32.6.2(a), 32.5.2(o)] On Sheet 5, it is not clear if a right-of-way dedication is being indicated by the hatched fill on/adjacent to the roadway. If this is the case, please add a label on Sheet 5, update the legend, and also add a note stating that "the land is to be dedicated or reserved for public use." Please note that any such dedication requires the submission and approval of a plat and corresponding deed of dedication. (See previous note regarding easements.) Rev. Comm. #2: Addressed — Sheet 3 (Site Layout Plan) appears to clarify and confirm that proposed road and streetscape improvements would be located within existing variable width ROW. 12. [Z.O. Sec. 32.6.2(a), 32.5.2(i)] Please coordinate with Mr. Dan Mahon, in the Albemarle County Department of Parks and Recreation (ACPR), regarding potential trail alignment and potential public use easement boundaries for the "proposed public nature trail" noted on Sheet 3. Rev. Comm. #2: Addressed — staff acknowledge applicant's significant coordination with Mr. Mahon. 13. [Z.O. Sec. 32.6.2(a), 32.5.2(s)] On Sheet 3, please include with the "proposed public nature trail" label a note that the final site plan represents an approximate alignment, and the final alignment will be determined by County Staff and built in partnership with the County. Rev. Comm. #2: Addressed / no longer applicable — staff acknowledge revisions to proposed public nature trail and proposed open space. 14. [Z.O. Sec. 32.6.2(a), 32.5.2(a)] On Sheet 1, please provide a list of planned recreation amenities and reference/note the approved Request for Substitution of Required Recreation Areas and Facilities dated September 20, 2018. Rev. Comm. #2: Addressed. 15. [Z.O. Sec. 4.16.2.1] The tot lot area must be fenced to provide a safe environment for young children due to the proximity of steep slopes, the travelway and parking area, and South Pantops Drive. Please demonstrate that this tot lot fencing requirement is met by showing a visual depiction of a fence and by adding a note and/or label. Rev. Comm. #2: Addressed — staff acknowledge new label ("Proposed Tot Lot w/ Safety Fence") on Sheet 3 (Site Layout Plan). 16. [Z.O. Sec. 32.6.2(a), 32.5.2(n)] On Sheet 3 or 4, please include the approximate location and size (total square feet) of the proposed clubhouse within Building 3. Rev. Comm. #2: Addressed — staff acknowledge new description and details of proposed "Provided Facilities" on Sheet 1 (Cover Sheet). 17. [Z.O. Sec. 32.6.2(i)] On Sheet 1, please revise the "Parking Required" site data calculations to include the new minimum parking requirements established through the approved Parking Determination dated December 18, 2018. Specifically, please include the minimum parking requirement information that is currently shown (as typically required by County Code), and add the new minimum parking requirements with a reference to the aforementioned determination (include document name and date). Rev. Comm. #2: Addressed — staff acknowledge revised/updated info regarding the approved Parking Determination on Sheet 1(Cover Sheet). 18. [Z.O. Sec. 4.12.17(c)(1)] The parking layout, between the surface lot in front of Building 3 leading to the podium parking in Building 2, does not meet code requirements for two-way access. The required minimum width is 20 feet. Please revise the parking schedule to conform to code requirements. Rev. Comm. #2: Addressed — CDD-Planning staff acknowledge revisions to the site layout in this area, as well as the corresponding dimensions, to achieve compliance with the applicable minimum design requirements specified in Z.O. Section 4.12.17(c)(1), as shown on Sheet 3 (Site Layout Plan). 19. [Z.O. Sec. 32.6.2(a), 32.5.2(n)] Please provide the proposed paving materials or other surface materials for all walks, parking lots, and driveways. * Unaddressed comment from the Initial Plan approval. Rev. Comm. #2: Addressed. 20. [Z.O. Sec. 32.6.2(a), 32.5.2(n)] Please show the proposed location(s) of outdoor trash containers. *Unaddressed comment from the Initial Plan approval. Rev. Comm. #2: Addressed. 21. [Z.O. Sec. 32.6.20), 32.7.9.4(b-c), 32.7.9.5(b)] On Sheet 8, please identify the location/extent of the existing tree canopy that will be preserved and maintained, as it is being used for the canopy bonus and (presumably) being utilized in lieu of new street trees that would otherwise be required along South Pantops Drive. Rev. Comm. #2: Addressed. 22. [Z.O. Sec. 32.6.20), 32.7.9.4(b)(2)] For all existing wooded areas that are being preserved and maintained in the plan to meet tree canopy requirements and/or street tree requirements, please submit a signed Conservation Plan Checklist and include any information required by the checklist into the plan documents, as necessary. See attached. Rev. Comm. #2: Partially addressed. Staff acknowledge addition of a Conservation Checklist (signed 3/19 and 3/22) on Sheet 8. However, the limits of disturbance, tree protection fencing, and other project details [as specified in Z.O. Section 32.7.9.4(b)(1)] need to be shown on the Grading Plan (Sheet 6) as well as the Landscape Plan (Sheet 7). 23. [Z.O. Sec. 32.6.20), 32.7.9.51 The current street trees specified for the street tree plantings (serviceberry) do not meet County Code requirements. Please select a large shade tree species to replace the current species. Any large tree species prescribed by the Albemarle County Recommended Plants List, attached, is acceptable. If another species is desired by the applicant, please submit a request and we will evaluate whether the substitution is acceptable. Rev. Comm. #2: Addressed (Two Ulmus parvifolia specified at 3.5" caliper outside of right-of-way). 24. [Z.O. Sec. 32.6.20), 32.7.9.4(b-c), 32.7.9.5(b)] Please ensure that all new street trees are located outside of the right-of-way. Rev. Comm. #2: Addressed. 25. [Z.O. Sec. 32.6.20), 32.7.9] The planting schedule depicted on Sheet 8 does not readily align with the Planting Schedule table provided on Sheet 9. Please review and revise these items to ensure consistency and provide clarity. Rev. Comm. #2: Addressed. 26. [Z.O. Sec. 32.6.20), 32.7.9] On Sheet 8, please use genus and species names when identifying intended tree placements on -site. Rev. Comm. #2: Addressed. 27. [Z.O. Sec. 32.6.20), 32.7.9.4(d)] In the Planting Schedule table, please include an additional column within the tree category to specify the category of tree, as it relates to the Albemarle County Recommended Plants List. For example: Large Deciduous; Medium Deciduous; Small Deciduous; Ornamental Tree. Rev. Comm. #2: Addressed. 28. [Z.O. Sec. 32.6.2(c)] On Sheet 7, the contour labels, grading elevations, and symbology used for contour lines are not consistent and, at times, actually appear to use the same line type. Please ensure that existing and proposed contours are depicted differently, and please ensure the contour labels and graphic conventions are consistent Rev. Comm. #2: Addressed. 29. [Z.O. Sec. 32.6.2(a), 32.5.2(s)] Please label the maximum height of all retaining walls. It appears that this is already shown for the retaining wall between Buildings 1 and 3, but please make sure that all retaining wall heights are provided. Rev. Comm. #2: Addressed. 30. [Z.O. Sec. 32.6.2(a) and 32.5.2(a)]: Revise the Site Data information on Sheet 1 (Cover Sheet) as follows: A. Revise the "Critical Slopes" label to "Steep Slopes" (Critical Slopes are only located in the Rural Areas; Steep Slopes are only located in the Development Areas); B. In the corresponding description for "Critical Slopes," change all instances of "critical slopes" to read "Steep Slopes" or "Preserved Steep Slopes" (as applicable); and C. Revise (update) the description of the document approved by the Engineering Division (titled "The Vistas at South Pantops Critical Slope Exhibit") to include additional reference to the most recent approval date (3/22/2019). 31. [Z.O. Sec. 32.6.2(a), 32.5.2(s), 32.6.2(g)]: As of 5/10/2019* it is the understanding of CDD-Planning staff that some the proposed "Open Space" designations on the Final Site Plan will need to be revised as described below; this will require revisions to labels, notes, and other information on Sheet 3 (Site Layout Plan), and Sheet 4 (Layout Plan — Ground Level Parking), as well as revisions to the corresponding Draft Special Lot Plat SUB201800176. A. After recent coordination with County staff within and outside of the Community Development Department, the "upper" proposed Open Space (identified as an approximately 2.99-acre area labeled as "County Park" on corresponding Draft Special Lot Plat) should no longer be reserved for future dedication to the County due to the overlapping (proposed) SWM Forest/Open Space Easement in this same area. Instead, this "upper" proposed Open Space should continue to be designated as Open Space on the Final Site Plan, but with a new designation as a proposed public use and access easement, and this public easement will need to be shown on the corresponding Special Lot Plat and also the corresponding Easement Plat submission (with corresponding legal documents also being required). B. The "lower" proposed Open Space (identified as an approximately 3.91-acre area labeled as "Greenway Reservation" on corresponding Draft Special Lot Plat) should also continue to be designated as Open Space on the Final Site Plan, and must remain designated as being reserved for future dedication to the County (as has been previously established by, and as is required by, the terms of recorded plat in Deed Book 2913, pages 156-162, recorded 2/l/2005). • (*) Note: CDD-Planning staff will continue to coordinate closely with the applicants and consultants, as well as all other regulatory stakeholders, to successfully identify a solution to the issues associated with the proposed Open Space (shown on the Final Site Plan) in relation to the proposed SWM Forest / Open Space Easement (shown on the WPO Plan). 32. [Z.O.32.7.9.4.(d)]: Please add the required "verification of compliance" note to the Landscape Plan. Please include the following standard plant health note: "All site plantings of trees and shrubs shall be allowed to reach, and be maintained at, mature height; the toping of trees is prohibited. Shrubs and trees shall be pruned minimally and only to support the overall health of the plant." 33. [Advisory]: It is the understanding of CDD-Planning staff that any maintenance within VDOT ROW is conducted solely by VDOT; please coordinate with VDOT staff and Albemarle County Parks and Recreation staff to determine the necessity of revising the following notes on Sheet 3 (Site Layout Plan): A. "Proposed pedestrian crosswalk to be maintained by developer" and B. "Location of proposed pedestrian crosswalk and connection point to trail to be determined and maintained by Parks and Rec Dept." Note: Permissibility and location of proposed crosswalks are subject to VDOT approval; CDD- Planning staff strongly support the design and implementation of pedestrian crosswalks (with appropriate signage, as may be applicable) across South Pantops Drive, which would also support and advance relevant Comprehensive Plan goals and recommendations. 34. [Advisory]: The following remaining approvals are required prior to approval of final site plan SDP-2018- 00085: A. [Z.O. Section 32.7.4.1.a]: Water Protection Ordinance Plan (and corresponding legal documents) / WPO-2018-00095 B. [Z.O. Sections 32.7.4.2 and 32.7.5.31: Easement Plat (and corresponding legal documents) C. [Z.O. Section 32.7.1.1]: Special Lot Plat (and corresponding legal document) / SUB-2018- 00176; and D. Tentative approvals (review status of "No Objection") from all applicable SRC members for final site plan SDP-2018-00085 (see below). REQUESTED CHANGES: Rev. Comm. #2: All Requested Changes (Comments identified as #30 — 35 in the first review comment letter dated 12/19/2018) are addressed. Thank you. 35. [Advisory Comment] Please be advised that, prior to a certificate of occupancy being granted, safety fencing is required along the top of the retaining wall on the southern edge of the property due to its height. Staff requests this fencing to be added (by graphic depiction and label) to this final site plan. Rev. Comm. #2: Addressed. 36. [Z.O.32.6.2(a), Sec. 32.5.2(a)] Review sheet index list and individual sheet titles to ensure these names match and are spelled correctly. Rev. Comm. #2: Addressed. 37. [Z.O. 32.6.2(a), Sec. 32.5.2(a)] On Sheet 1, include in the sheet index a total number of sheets. Rev. Comm. #2: Addressed. 38. [Z.O. Sec. 32.6.2(a), 32.5.2(a)] On Sheet 2, please revise the Legend to add the word "Steep" when describing Preserved and Managed Steep Slopes. For example, "Preserved Steep Slopes" and "Managed Steep Slopes". *Unaddressed comment from the Initial Plan approval. Rev. Comm. #2: Addressed. 39. [Z.O. Sec. 32.6.2(a), 32.5.2(h)] On Sheet 2, please label the Flood Hazard Overlay District. Rev. Comm. #2: Addressed. 40. [Z.O.32.6.2(a), Sec. 32.5.2(r)] On Sheet 2, the Soil Type Boundary in the legend is not readily distinguishable on the map. Please revise. Rev. Comm. #2: Addressed. REVIEW STATUS OF OTHER SRC REVIEWERS: Albemarle County Engineering Services (Engineer) David James, diames2@albemarle.org — "Requested Changes" (4/25/19); see attached comments. Albemarle County Building Inspections Michael Dellinger, mdellingerkalbemarle.org "See Recommendations" (4/5/19); see attached comments. Albemarle County Information Services (E911) Andrew Slack, aslack(kalbemarle.org — "No Objection" (12/7/18). Albemarle County Department of Fire Rescue Shawn Maddox, smaddox(cr�,albemarle.org — "No Objection" (4/15/19); see attached comments. Albemarle County Service Authority Richard Nelson, rnelson(&serviceauthority.org — PENDING (as of 5/10/19); review comments will be forwarded upon receipt. Virginia Department of Transportation Adam Moore, adam.moore@vdot.vir ig nia.gov — PENDING (as of 5/10/19); review comments will be forwarded upon receipt. Please contact Tim Padalino at the Department of Community Development at (434)-296-5832 ext. 3088 or 1padalinokalbemarle.org for further information or assistance. COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road, Room 227 Charlottesville, Virginia 22902-4596 Phone (434) 296-5832 Fax (434) 972-4126 Project: The Vistas at South Pantops — Final Site Plan Plan preparer: Riki Van-Niekerk, Roudabush Gale & Associates, 172 South Pantops Drive Charlottesville, VA 22911 [rvan-niekerk(&roudabush.com; rikinaxoudabush.coml Applicant: Trey Steigman, VP/Management Services Corp [tsteigman(a),msc-rents.com] 102 South First St. Ste. 301, Charlottesville, VA 22902 Owner: Charles W. Hurt, South Pantops II Land Trust, P. 0. Box 8147 Charlottesville, VA 22906 Plan received date: 26 Nov 2018 2 April 2019 Date of comments: 10 Jan 2019 25 April 2019 Reviewer: John Anderson David James (Rev.1) (Planning Reviewer: Mariah Gleason Project Coordinator: Tim Padalino) SDP2018-00085 Title sheet 1. Revise site plan title to reference SDP201800085. (Rev.1) Addressed. 2. On title sheet, include Note reference to The Vistas at South Pantops Critical Slopes Exhibit, rev. d. 5/11/18, PE -seal date 5/17/18, Approved by Engineering Division 5/17/18, filed with SDP201800008. (Rev.1) Addressed. 3. Revise index to include retaining wall design for all walls associated with travel ways and parking areas. Retaining wall design for walls integral to buildings 1, 2, or 3 may be submitted with building permit application/s. (Rev.1) Applicant will provide following FSP submittal. 4. Provide retaining wall design for retaining walls associated with travel ways or parking areas that are not integral to buildings 1, 2, or 3. (Re£ site plan and retaining wall plan review checklists; Attached). (Rev.1) Applicant will provide following FSP submittal. 5. Provide /show outline location/s of conceptual SWM detention or treatment systems. VSMP/WPO plan must be approved prior to Final Site Plan approval. (WP0201800095 is under review.) (Rev.1) Area of Forest/Open Space to be demarcated in the field (fenced off) prior to construction.-TBA on WPO plans 6. Revise Erosion Control, ES-1 Note to ref. 9VAC25-840-40. (Rev.1) Addressed. 7. Plan Note 3: Revise to eliminate contractor responsibility to obtain state -federal permits. Albemarle will not approve a VSMP/WPO plan unless /until required state /federal permits are acquired. FSP cannot be approved without an approved VSMP/WPO plan. Permit acquisition is an Applicant /Owner responsibility. (Rev.1) Addressed. 8. Plan Note 3: Revise to clarify Property Owner is required to post SWM-ESC-Mitigation plan bonds. (Rev.1) Addressed. 9. Plan Note 4: Revise to read County Engineer, rather than District Engineer. (Rev.1) Addressed. Engineering Review Comments Page 2 of 5 Sheet 2: 10. Delete ref. to ISP 10 for preserved slope details. Provide label reference to Critical Slopes Exhibit approved by CDD/Engineering on 5/17/18, filed with SDP201800008. (Rev.1) Addressed. 11. Recommend show `special lot' boundaries. Provide note reference to SUB201800176. (Rev.1) Addressed. Sheet 3: 12. Provide label reference to proposed private nature trail detail. Provide trail detail. Ref. ASCDSM. (Rev.1) Addressed. 13. Label all pedestrian crosswalks. (Rev.1) Addressed. 14. Provide /label crosswalk striping. (Rev.1) Addressed. 15. Label all CG12. Provide CG-12 ramps at travelway/sidewalk crossing locations in plan view. (Rev.1) Addressed. 16. Label sidewalk width for sidewalk fronting parking spaces located on south side of Vistas Way. (Rev.1) Addressed. 17. Some proposed parking space /travel way linework is gray; revise to black to indicate proposed improvements. Applies to sheets 4, 5 gray line type, as well. (Rev.1) Addressed. 18. Label retaining wall/s. (Rev.1) Addressed. 19. Provide /label retaining wall handrails, wherever wall ht. > 4-€t 30-in. (Rev.1) Acknowledged; Correction > 30-in. 20. Label guardrail. Provide label reference to GR-2 detail, sheet 19. (Rev.1) Addressed. 21. Label sidewalk width facing South Pantops Drive. (Rev.1) Addressed. 22. Label South Pantops Rd. right-of-way (linework). (Rev.1) Addressed. 23. Provide outline location/s of on -site SWM facilities (conceptual level), consistent with WP0201800095. (Rev.1) Area of Forest/Open Space to be demarcated in the field (fenced off) prior to construction.- TBA on WPO plans 24. Approx. location 100' water protection ordinance buffer leader line maybe inaccurate. (Rev.1) Addressed. 25. WPO buffer location may require revision; confirm location buffer. Revise leader line, if necessary. (Rev.1) Addressed. Sheet 4: 26. Last parking space, NW corner of Vistas Way parking lot measures 13.2 (`sheltered' length =16'). Revise island west of this parking space to provide `sheltered' length =18-ft. Sheet 20 indicates fire truck will contact fender of vehicle parked in this space at a location 17-ft. distant from face of curb fronting this space. Revise to provide 1-ft. clearance between fire vehicle turn figures; that is, 19-ft. from face of curb fronting this parking space. (Rev.1) Addressed. 27. Revise label at dumpster pad, so legible (revise grayscale text to black). (Rev.1) Addressed. 28. Show and label existing terrain contours. (Rev.1) Addressed. 29. Label entrance width at narrowest point. Applies to sheet 5, as well. (Rev.1) Addressed. Sheet 5: 30. Provide auto -turn figures for typical passenger vehicle encountering a second typ. passenger vehicle traveling in the opposite direction at: a. Travel way curve just prior to entering/leaving building 3 parking deck. (Rev.1) Addressed. b. At curve measuring 17-ft., FC-FC, on approach to 23-space parking area west of building 2. (Rev.1) Addressed 31. Ensure aisle width in 23-space parking area west of building 2 is at least 20-ft. (Rev.1) Addressed. 32. Label parking aisle width (item 31). (Rev.1) Addressed. 33. Revise design as needed to provide travelway width for typical passenger vehicles to pass one another at all locations, when traveling in opposite directions. (Rev.1) Addressed. Engineering Review Comments Page 3 of 5 34. Provide mirror to aid residents exiting building 3 to minimize chance of collision with vehicle/s reversing from parking spaces in the 16-space parking area. Sight distance is inadequate. (Rev.1) Addressed. 35. In the following locations, recommend stripe 2 spaces as `No Parking' to allow parked vehicles to reverse, and travel in a forward direction: a. N corner building 1, beyond stair well; b. SE corner building 2, beyond stairwell; c. NW corner building 3, before stairwell; Note: Recommendation results in loss of 6 parking spaces. Note: If recommendation not accepted, provide alternate design to ensure all vehicles using building parking decks can reverse and travel in a forward direction without performing extreme, multi -point or precise reverse maneuvers. (Rev.1) Addressed. Sheet 6 36. Label rectangular structure south of Str. 11. Rectangle differs in shape and style from typical DI. (Rev.1) Addressed. 37. Show and label existing terrain contours. (Rev.1) Addressed. 38. Ensure adequate drainage easement width, all section of proposed storm system. For example, 20' is insufficient for storm line depth between structures 3 and 4. Ref easement width diagram, ACDSM, p. 15. (Rev.1) Acknowledged. 39. Ensure `for residential development, the principal access [Vistas Way is] free of flooding during the 25-yr storm.' Ref. item 4, Drainage, Drainage Plan review checklist. Provide LD-229 based on 25-yr event. Note: development anticipates 949 trips per day (144 units). Vistas Way is a principal access. (Rev.1) Addressed. 40. Show /label VDOT ES, as Str. 1. (Rev.1) Addressed. 41. Label slope of storm line between Str. 9 and 10. Ensure slope < 16%. Ref. Drainage plan review checklist. (Rev.1) Acknowledged. Sheet 7 42. Provide additional detail /labels for pool deck area of plan (TWBW, if retaining wall; spot elevations). Geometry of structures in this location is unclear. (Rev.1) Acknowledged; Pool deck details will be submitted with the building plans... 43. Provide/label handrails wherever wall ht. > 4-ft., including pool deck area. (Rev.1) Addressed. 44. At tangent section of travel way just prior to entering building 3 parking deck, revise % grade labels so legible. (Rev.1) Addressed. 45. Add flow lines and % grade to asphalt surface to ensure runoff reaches Sir. 5. (Rev.1) Addressed. 46. Revise proposed improvements line type from grayscale to black. Also, similar comments elsewhere. (Rev.1) Addressed. 47. Provide TW/BW elevations along retaining wall south of building 2. (Rev.1) Addressed. 48. Show and label existing terrain contours. (Rev.1) Addressed. 49. Ensure entrance grade < 4% for at least 40', measured from EP, South Pantops Drive. Ref site plan review checklist, entrance improvements, item 2. (Rev.1) Addressed. 50. Sheet 8: Two (2) serviceberry trees conflict with Str. 7 and 8; revise landscape plan to eliminate conflict. (Rev.1) Addressed. 51. Sheet 12: Provide pavement design for Vistas Way based on 949 VPD. Proposed pavement section Dp =8.14, but Dr=14.575. Revise Vistas Way pavement section to ensure that Dp(rovided) ? D r(equired)• (Rev.1) Addressed. Sheet 14 Engineering Review Comments Page 4of5 52. Recommend against 0.50% grade, EXSDMH to Str. 10. If As -built condition of this storm line pipe < 0.50%, owner must provide remedy. (Rev.1) Addressed. 53. Max. grade storm line pipe is 16%. Revise proposed grade of storm line pipe between Str. 9 and 10. (Rev.1) Acknowledged. 54. Provide label identifying structure located 2.7' below storm line between Str. 8 and 9. (Rev.1) Addressed. 55. Provide note requiring specific compaction for MH Str. placed in fill; that is, Str. 5B, 613, and 6C, to minimize issues related to settling. For example: (Rev.1) Addressed. 56. Show /label VDOT ES-1 in profile (Str. 1). (Rev.1) Addressed. 57. Inlet calculation tables are not VDOT LD-204, LD-229 format. Provide LD-204 for inlets; LD-229 for storm sewer design. (Rev.1) Addressed. 58. Since vertical drop in `step-down' MH Str. 5 > 4', provide 'h" steel plate in floor of MH; ref. VDOT drainage manual, p. 9-38 (image, below): (Rev.1) Addressed. 59. Max. water depth for 5.5" inlet throat ht. = 0.458'. Ensure water depth < Max. depth. (Rev.1) Addressed. 60. Sheet 18: Provide MH Step detail. (Rev.1) Addressed. 61. Sheet 19: Provide dumpster pad detail; ref site plan review checklist, p. 3, item 8. (Rev.1) Addressed. 62. Sheet 19: Provide handrail detail. (Rev.1) Addressed. 63. Sheet 20: Engineering defers to ACFR on adequate geometric design for fire -rescue needs. (Rev.1) Addressed. 64. Relates to ESC Plan: Email from John Anderson dated 01/11/2019: Please provide V-2year at structure 1 (system outfall), and riprap L x W x D design, consistent with VESCH design guidelines (Std. & Spec. 3.18 Outlet protection). Label Str. 1 outfall riprap L x W x D dimensions on the VSMP/WPO Plan (WPO 2018- 00095), and on the final site plan. (Rev.1) Acknowledged; Comment shall be addressed on the VSMP plan review. 65. Email from John Anderson, dated 01/16/2019: Rieht turn lane: Sheet 12 shows South Pantops Drive typical road cross section with proposed 12' right turn lane. Please revise site layout sheets (3, 4, 5) to show and label proposed rt. turn lane in plan view (unless overlooked). (Rev.1) Addressed. Sheet 2 shows variable width Ex. concrete ditch section. Please revise sheet 2 to show portion of Ex. concrete ditch to be removed /demolished. (Rev.1) Addressed. 66. Email from David James, dated 01/17/2019: 1. The outfall pipes from storm structure 4 should be adjusted (enlarged/raised, etc.), or be made watertight based upon HGL. {DSM, pg. 14) (Rev.1) Acknowledged. 2. All drainage from public ROW should be shown in an easement. Minimum width 20' & meets DSM, pg. 14 width requirement. (Rev.1) Acknowledged. 3. Sheet 10 - Pipe (2-1) & (3-2) a. Velocity shall not exceed 15 ft/s in pipes. (Rev.1) Acknowledged. b. Provide anchor blocks at every other pipe joint for storms pipes over 16% slope. A "step down" manhole system can be used in steeper terrain to reduce pipe gradient. (Rev.1) Acknowledged. c. Correct the tables - node IDs showing `64' or don't match the nodes shown on Sheet 5 map. (Rev.1) Acknowledged. 67. [NEW] (Rev.1) Sheet 3/4: a. Provide correct sheet callout for trash compactor. Correct the CG-12 callout along s. pantops (should be CG-6) and page reference label (should be sheet 18) for guardrail terminal detail. Engineering Review Comments Page 5 of 5 b. Label retaining walls over 30-in & not integral to the building wall design (RW#1, RW#2, etc.). Provide max height, TW/BW spot elev. for retaining wall at S-W parking lot corner near building #3. Guardrail warranted in front of retaining wall for last two parking spaces. c. Specify UD-3 for proposed sidewalk along s. pantops. UD-3 to outlet to EW-12 or proposed flume drain str. Show UD-3 in the sidewalk detail. 68. [NEW] (Rev.1) Sheet 6: Correct grading near entrance where the ditch (to be removed/demoed) and curb/sidewalk meet. Sidewalks shall be generally level with minimal surface warping; cross -slope shall not exceed 2%. 69. [NEW] (Rev.1) Sheet 13: a. Velocity in pipes (2-1) & (1-Out) & outlet is considered excessive. Reduce pipe velocity to 20fps or less, and outlet velocity to 10fps or less. A possible solution would be to install additional `step-down' manhole/s. b. Show size of drainage area going to flume off of s.pantops. I believe the total drainage area going to is more than 0.02ac. Is EC-3 adequate, if not provide alternative? Review Comments for SDP201800085 IFinal Site Development Plan Project Name: The Vistas at South Pantops - Final Date Completed: Friday, April 05, 2019 DepartmentlDi+visionlAgency: Review Sys: Reviewer: Michael Dellinger CDD Inspections See Recommendations Other than the following below, no objection_ Add the follo}r5,ing note to the general notes page: Retaining }, alls greater than 3 feet in height require a separate building permit_ Walls exceeding 4 feet in height require an stamped engineered design also_ Add the following note to the general notes page: ALL water lines, sewer lines, and fire lines from the main to the structure MUST have a 5riSLIal inspection performed by the buildng department_ Add the following to the general notes page: All roof drains shall discharge in a manner not to caLise a pLiblic nLiisance and not over side,,valks Page: County of Albemarle Printed On: 051091 1919 Thank you for addressing previous comments_ Fire Rescue has no objections_ SNM Page: County of Albemarle Printed On: 051091 00'19