HomeMy WebLinkAboutWPO200900013 Review Comments Stormwater Management Plan 2009-04-30OF AL
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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:
Plan preparer:
Owner /Applicant:
Plan received date:
Date of comments:
Reviewer:
A. Final Site Plan
Van Dine Plaza [SDP200900024 & WP0200900013]
Justin Shimp, PE; Dominion Development Resources
[email: j shimp @ ddrva.com]
Auto LLC
9 April 2009
30 April 2009
John P. Diez — Engineering Technician
1. Please provide source and date of topographic verification. [18- 32.6.6]
2. Some of the grading in the parking areas exceeds 5% slopes. [18- 4.12.15C]
3. Some of the grading in the travelways adjacent to the parking lots exceeds 10% slopes.
[18- 4.12.17A]
4. Please adjust the loading space to meet 12'X25' requirement on the northwest part of the site.
5. All travelways without parking must be 20' wide measured from curb faces.
6. Sidewalks abutting parking must be 6' wide, or bumper blocks are provided.
7. Please provide guardrails with VDOT designations shown for retaining walls next to parking or
travelways. [ 18- 32.7.2
8. Safety railings must be shown for retaining walls over 4' high.
9. Please provide a retaining wall detail.
B. Stormwater Management Plan
10. Please provide routing models for the stormwater detention facilities.
11. Please provide impervious area and removal rate calculations.
12. Please provide Albemarle County general stormwater notes.
13. A completed copy of the Standard Stormwater Management Maintenance Agreement and fee for
recordation for the stormwater facilities on TMP 45 -100 required prior to final approval.
[ 17 -304E] The forms and instructions can be found on the Community Development Department
website on www.albemarle.org.
14. Please provide adequate channel analysis (MS -19) for the proposed outfall.
15. Please provide calculations for the existing 24" culvert at the north side of the site.
16. Please provide a Detention Compliance Table.
17. Post - Development drainage areas do not match inlet drainage areas.
18. Please provide a blow up plan view of the riser including invert shaping, if applicable.
C. Erosion and Sediment Control Plan
19. Please extend the diversion dike on the northwest side of the property up to contour 526.
20. Please provide a stockpile location.
21. Please provide staging or parking area.
22. Please show the outlet protection for the Sediment Trap on sheet E -3.
Albemarle County Community Development
Engineering Review Comments
Page 2 of 2
Once these comments have been addressed, please submit two (2) copies of the revised plans, calculations,
and narratives to Current Development Engineering.
Current Development Engineering is available from 2:30pm — 4:OOpm on Thursdays to discuss these
review comments. Please contact Amy Pflaum at 434 - 296 -5832 or apflaum @albemarle.org to schedule an
appointment.
E1— fsp —JPD —Lewis & Clark Exploratory Center