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HomeMy WebLinkAboutWPO201100056 Review Comments Stormwater Management Plan 2011-08-11� OF AL ,. vIRGI1`IZP 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: Hollymead Town Center, stormwater management basin 3, revisions Plan preparer: Micheal Myers, P.E., Dominion Engineering [mmyers @ dominioneng.com] Owner or rep.: John Fitzpatrick, P.E., Regency Centers Ufitzpatrick @regencycenters.com] Plan received: 8 Aug 2011, 18 Aug 2011 Date of comments: 11 Aug 2011, 1 Sep 2011 Reviewer: Glenn Brooks, P.E. Stormwater Management Plans (WP0201100056) Your plan showing proposed revisions to the stormwater retention basin at Hollymead Town Center behind Kohls (SWM #3) has been reviewed. Thank you for clarifying the plan to raise the bottom, raise the embankment, change the riser, and cut the insides slopes of the pond. As shown on the approved plan, the retention pond embankment should meet the state requirements, which includes a 3:1 minimum steepness on the downstream slope. As we discussed, this will most likely involve pushing out the toe of slope, such that a uniform 3:1 can be establish and maintained (mowed). The existing grades do not appear acceptable. The remaining details and computations appear to be dependent on these changes. File: E2 swm GEB WPO201100056 HTCswm3amend