HomeMy WebLinkAboutWPO200900070 Review Comments Stormwater Management Plan 2010-01-13ALg�,��
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COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project: SDP - 200900100 & WP0200900070, Pleasant Grove — Final Site Plan
Plan preparer: AC Shelton (ac00 @comcast.net)
Owner or rep.: Pleasant Grove Baptist Church C/O James E Thomas
Date received: 16 December 2009
Date of Comment: 13 January 2010
Engineer: John P. Diez — Engineering Technician
The Final Site Plan for Pleasant Grove, received on 16 December 2009 has been reviewed. The plan
cannot be approved as submitted and will require the following corrections before approval can be granted:
A. General Review Comments
1. All slopes 25% and over (critical slopes by County Zoning Ordinance) must be shaded [18- 32.6.6]
2. Please specify on the plans that "All proposed slopes steeper than 3:1 must be provided with low
maintenance (not grass) ground cover.
3. All entrances must have VDOT designations (PE -1, CG -9a, etc.)
4. Please provide unobstructed sight distance triangles at the entrance.
5. !2.5' minimum radii at the entrance (or per VDOT requirements, typically 25' -35') must be
provided.
6. VDOT approval must be obtained for any plan affecting public right -of -way.
7. Some parking areas exceed the 5% grade minimum. Please revise.
8. Parking width x depth x aisle width is 9'x18'x24' or 10'x18'x20' (where a 2' grass overhang is
possible, parking spaces can be 16' deep per detail 2 of the Design Standards Manual).
[18- 4.12.16]
9. Sidewalks abutting parking must be a minimum of 6' wide (exclusive of curb), or bumper blocks
must be provided. Please refer to the Design Standards Manual.
10. Sidewalks must be a minimum of 5' wide, exclusive of curb. Please refer to the Design Standards
Manual.
11. Please provide a pavement design detail.
12. Please show all existing utilities on the plans.
13. Please provide a tree survey showing existing trees within the No Disturbance Zones.
B. SWM Plan Review Comments
14. Manufactured pre- fabricated water quality facilities must have a written approval from the
manufacturer.
15. A completed copy of the standard stormwater maintenance agreement and fee for recordation for
any stormwater management facilities must be submitted. [17 -304E]
16. Please provide a drainage profile for the proposed stormwater pipes.
17. Please provide details and computations for the control riser for storm water detention.
18. Please provide coefficient and time of concentration for each drainage area.
19. Please provide an adequate channel analysis (MS -19).
C. Erosion and Sediment Control Review Comments
20. Please provide an Erosion and Sediment Control Narrative.
21. It appears that the sediment trap will not capture most of the runoff during construction.
Engineering recommends that the sediment trap be moved to the south side of the site (by the
proposed SWM outlet). In addition, please provide a diversion dike along the southeast side of the
site to capture and direct the runoff to the sediment trap.
22. Please provide details and computations for the sediment trap.
23. The diversion dike on the northeast side of the site is not necessary; Please remove.
24. Silt fence must not be installed across contours. Please remove the silt fence on the northeast side
of the site.
25. Please provide dust control (DC) on the plans.
26. Please provide temporary and permanent seeding (TS, PS) on the plans.
27. Please provide a stockpile and staging area.
28. Please provide a construction sequence.
29. Please install outlet protection to all proposed outlets.
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