HomeMy WebLinkAboutSDP200900017 Review Comments Minor Amendment 2009-04-01*-&A
County of Albemarle
Department of Community Development
Memorandum
To: Gerald Gatobu, Current Development Project Planner
From: Phil Custer, Current Development engineering review
Date: 1 April 2009
Subject: Humagen Minor Amendment (SDP- 2009 - 00017)
The minor amendment for the Humagen Facility has been reviewed. Engineering review for Current
Development can recommend approval to the minor amendment after the following comments have been
addressed:
1. Critical slopes are disturbed with this application and this disturbance requires a waiver. These critical
slopes were created with the construction of site plan SDP - 1996 -00030 and are likely not designated
on the county's open space plan. Therefore, the disturbance shown in this plan is eligible to be waived
by the Director of Current Development, unless the application is called up to the Planning
Commission. Before the Director can waive such disturbance, the Zoning Ordinance requires the
approval of an Erosion and Sediment Control Plan beforehand. Approval of an ESC plan will likely be
a condition of Director's granting of the critical slope waiver. The engineering review of the critical
slope waiver will be given in a separate document.
2. The parking lot should be graded in such a manner that no slopes steeper than 5 %, other than in the
transitional area at the entrance from the travelway, exist. This appears to be possible by moving the
468 contour line and still keeping the corner of the lot at 467. (Please see the sketch at the end of this
memo.)
3. The hatched area in the upper parking lot should be a curbed island. [18- 4.12.1511
4. Please provide a note on the pipe profile stating that the contractor is to provide a concrete transition
from the end - section to the bottom of the VDOT ditch.
5. VDOT approval is required for the proposed pipe outlet into public ROW.
6. A WPO application and fee are required for the SWM and ESC plan review.
The following are unofficial WPO plan comments that must be addressed with the WPO application prior
to site plan approval.
1. The new drop inlet should be a DI -3A so that the Filterra hydraulics are more likely to work properly
in the field. Spot elevations on the pavement at the throat of the Filterra and curb inlet should be
provided.
2. Please specify the size of the Filterra.
3. An approval letter from Filterra is required.
4. The ESC plan required as a condition of the critical slope waiver must be a full plan including all
applicable items in the design manual checklist.
Current Development
Engineering Review Comments
Page 2 of 2
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File: E1_mia_PBC_sdp200900017_Humagen Minor Amendment.doc