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HomeMy WebLinkAboutSDP201900015 Correspondence Final Site Plan and Comps. 2019-12-20® COLLINS ENGINEERING December 20, 2018 Cameron Langille Department of Community Development 401 McIntire Road Charlottesville, VA 22902 RE: Brookhill Block 8B Final Site Plan (SDP 201900015) `200 GARRETT ST, SUITE K CHARLOTTESVILLE VA 22902 j 434.293.3719 PH 434.293.2813 FX ( www.collins-engineering.com Thank you for your comments dated September 5, 2019 on the above referenced project. Planning Comments: 1. Comment previously addressed. 2. Comment previously addressed. 3. Comment previously addressed. 4. Comment previously addressed. 5. Comment previously addresse 6. The proposed acreages on the Block area chart have been coordinated with Bohler's recently provided information from October, 2019. Our block plan updates these numbers the final changes to the Block 8, including modifications to Block 8A and 8B. These figures will be provided back to Bohler to coordinate their final submissions with these revised figures. 7. Comment previously addressed 9. This comment is acknowledged. The existing conditions sheet includes the information from these plats and the updated boundary parcels. 10. The approved Special use permit conditions have been added to the plan sheets with the proffers, as requested. See sheet 3. 11. -)mment previously addressed 13. The steep slopes have been labeled on the grading and drainage sheet, to match the existing conditions plan. The sheets show the preserved slopes on the west side of Archer Avenue. 14. omment previously addressed 15. omment previously addressed 16. Dmment previously addressed 17. omment previously addressed Comment previously addressed. 19. ''omment previously addressed 20. mment oreviously addressed 21. This comment is addressed. The variation has been approved by the BOS. The chart on sheet 1 has been updated. l-UI III I IUI IL I.1I UVIUUJIy dUUI CJJCU. 23. Comment previously addressed 24. Dmment previously addressed . Comment previously addressed. 26. lomment previously addressed 27. omment previously addressed 28. omment previously addressed 29. Dmment previously addressed 30. omment previously addressed 31. omment previously addressed 32. omment previously addressed 33. omment previously addressed 34. _omment previously addressed 35. Comment previously addressed 36. -omment previously addressed 37. _omment previously addressed 38. "omment previously addressed 39. omment previously addressed 40. nmment previously addressed 41. 42. This comment no longer applies. No new streets are being created with this development plan, and the sidewalks, travelways, etc will be located within the private development lot. 43. ent previously address(: 44. The lighting note on the cover sheet has been updated, as requested. 45. 46. omment previously addressed 47. omment previously addressed 48. omment previously addressed 49. omment previously addressed 50. omment previously addressed 51. 52. All the existing and proposed parcel lines have been clearly delineated on the existing conditions sheet and layout sheets. The TMP numbers, acreages, DB/PG will be updated once the plats are recorded. 53. The easement plat for the Block 8B is currently being prepared, and will be submitted to the County for review. 54. 55. -omment previously addressed 56. The landscaping plan has been updated for the required buffer plantings along the missing 240' segment of the landscaping buffer. These proposed plantings have been incorporated into the plans. 57. The buffer and open space acreages have been revised and updated, as requested. The overall open space summary chart on sheet 3 has also been updated to reflect the acreages shown on sheets 4, 5 and 6. 58. The open spaces as listed on sheet 1, sheet 3, and sheets 4-6 have been updated accordingly to reflect the changes to the block 8B and block 8A boundaries, and the updated open space areas. 59. As requested, the open space areas have been revised between blocks 8B and 8A. The areas included in the open space have been updated, accordingly, as suggested in the comment letter and the 0.20 acres of civic area has been removed. A subdivision plat will be submitted, platting this open space within the greenway, buffer, and common open space on Block 8B, as requested. 60. The zoning information on sheet 1 and the approved proffers have been updated, as requested. 61. The description of any limits of public r/w have been removed for Wesley Circle. In addition, all lot numbers have been removed. Engineering Comments: 1. This comment is acknowledged, the WPO has been resubmitted for final approval. 2. 3. A final design for the walls will be submitted shortly for final review. 4. ..omment previously addressed 5. Zomment previously addressed 6. 'omment previously addressed 7. ment previously addressed 8. The Stella lane road plans have been revised to accommodate the changes to the entrance into the site, including updates to the storm sewer system, roadway entrance, and other modifications. These items have been coordinated between the (2) engineering firms. CE is reaching out to Bohler to ensure they resubmit the plan for final approval of amendment #1. 9. 10. The landscaping plan has been updated for the revegetation of a portion of the Polo Grounds road buffer. The pond has been lowered and the 2:1 slopes long polo grounds road in this location have been removed. 11. ;omment previously addressed 12. 13. The roof drain system has been updated to provide a 6" roof drain main line to pick up all roof drains in the front and rear of the units. 14. Zomment previously addressed 15. Zomment previously addressed 16. "omment oreviously addressed 17. The note about limits of public r/w on sheet 5 has been removed. 18. A Steel % plate has been added to the plans where the storm manholes step down over 2', to prevent deterioration of the bottom of the manhole. ACSA Comments: 1. The comments from the Albemarle County service authority have been addressed and the utility plan has been approved by ACSA. ARB: 1. The final ARB submission will be made shorlty for the Certificate of Appropriateness for the project. Fire/Rescue: 1. Hydrants have been positioned throughout the site to provide a FH within 100' of the FDC. 2. A note has been added to the plans about the buildings requiring a knox box. VDOT: 1. Attached are the turn lane warrants for Stella Lane (now Archer Avenue). Should you have any questions, please feel free to contact me at Scott@collins-engineering.com. Sincerely, Scott Collins F-62 WARRANT FOR LEFT -TURN STORAGE LANES ON TWO-LANE HIGHWAY = 700 W 600 500 0 400 z UO 300 CL a_ 200 0 0 > 100 :II = 700 d w 600 500 0 400 z 0 300 n o 200 0 100 L 200 400 600 800 1000 VA ADVANCING VOLUME (VPH) Total Approach VPD=4,420 vpd=approx. 400 vph Total Opposing VPD=4,420 vpd=approx. 400 vph FIGURE 3-5 Based on these VPH movements, no left turn lane is warranted. 200 400 600 800 1000 VA ADVANCING VOLUME (VPH) FIGURE 3-6 120 100 cc D 0 w IL s0 N w J U 2 W 7 C6 60 Z cc D F F Z 0 40 20 100 200 300 400 Soo boa 700 PHV APPROACH TOTAL, VEHICLES PER HOUR Appropriate Radius required at all Intersections and Entrances (Commercial or Private). LEGEND PHV - Peak Hour Volume (also Design Hourly Volume equivalent) Adjustment for Right Turns For posted speeds at or under 45 mph, PHV right turns > 40, and PHV total < 300. Adjusted right turns = PHV Right Turns - 20 If PHV is not known use formula: PHV = ADT x K x D K = the percent of AADT occurring in the peak hour D = the percent of traffic in the peak direction of flow Note: An average of 11 % for K x D will suffice. When right turn facilities are warranted, see Figure 3-1 for design criteria. FIGURE 3-26 WARRANTS FOR RIGHT TURN TREATMENT (2-LANE HIGHWAY) Peak Right Turn Volumes 38 vph x 80%= 30 vph for Block 8b Total Approach VPD = 4,420 vpd = approx. 400 vph Rev. 1/15 Based on these VPH movements, no right turn lane or right turn taper is warranted.