HomeMy WebLinkAboutWPO200900026 Review Comments Stormwater Management Plan 2009-07-06� OF 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: Old Trail Phase VIII (Block 2)
Plan preparer: Collins Engineering [fax (434) 245 -0300]
Owner or rep.: March Mountain Properties, LLC [fax (434) 245 -0300]
Plan received date: 1 June 2009
Date of comments: 3 July 2009
Reviewer: Max Greene
The plans for Old Trail Phase VIII (Block 2) submitted on 1 June 2009 have received
Engineering review. The following items will be adequately addressed prior to
resubmittal:
A. Road and drainage plans (WPO200400026)
1. VDOT approval is required. Comments will be forwarded when received.
[DM905]
2. Stormwater drainage from phase 1 does not appear to be addressed on the E &SC
and SWM plans. Please make all plans sheets congruent.
3. Vicinity map [18- 32.6.6] Maps are to be 1:2000 according to County Code.
4. Accurate current existing topography at the time of submittal, including all
existing site features, and any recent disturbances, all at a legible scale [18- 32.6.6,
14 -302] Plan has discrepancy between pages PT -1 and E -1.
5. Proposed slopes are all 2:1 (horizontal: vertical) or flatter [Policy] Plan appears to
show 1:1 slopes in the basin area. Please review VESCH Std. & Spec. 3.14 for
State approved design standards "Temporary Sediment Basins ".
6. Dumpster pads are 10'x10' with 8' in front for wheel bearing (total 18' depth)
7. Please show all proposed and existing storm sewer (with arrows indicating
direction of flow where it is not otherwise evident)
B. Stormwater Management and Mitigation Plan (WPO200900026)
1. According to the site plan page, the Stormwater for a portion of Block #1 is being
redirected off the page into the unapproved Block 4. Please clarify where and
how the stormwater will be treated.
2. A completed copy of the standard stormwater maintenance agreement and fee for
recordation for any stormwater management facilities [17 -304E]
3. Pro -rated share payment for any sites that drain to County regional stormwater
management facilities will be calculated prior to final approval. [ 17 -316]
4. Please show biofilters with minimum floor dimensions labeled for the contractor
and inspectors.
5. Please make all bio- retention details congruent. Stone depths do not match.
Engineering Review Comments
Page 2 of 2
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C. Erosion Control Plan (WP0200900026)
1. Please show temporary and permanent seeding symbols (TS, PS)
2. Please show a trash rack on the basin riser.
3. Please submit basin design work sheet with riser floatation computations.
4. Please change the temporary paved construction entrance detail to the Albemarle
County Paved Construction entrance detail.
Once these comments have been addressed, please submit 2 copies (add 1 more copy if VDOT
needs to review, and 1 more if mass - grading that Planning needs to review) of the revised plans,
calculations, and narratives to Current Development Engineering.
Due to the requested information, additional comments and or conditions may be forthcoming.
Current Development Engineering is available from 2:30 -4 PM on Thursdays to discuss these
review comments. Please contact your name at 434 - 296 -5832 ext. 3283 or email
mgreene @albemarle.org to schedule an appointment.
File: E1_rp,esc,swm,fsp_MRG_0ld Trail Phase VIII (Block 2).doc