HomeMy WebLinkAboutSDP200900051 Review Comments Preliminary Site Plan 2009-07-14 (3)*-&A
County of Albemarle
Department of Community Development
Memorandum
To: Elizabeth Marotta, Current Development Project Planner
From: Phil Custer, Current Development engineering review
Date: 14 June 2009
Subject: South Plains Presbyterian Church Preliminary Site Plan (SDP -2009- 00051)
The preliminary site plan for the South Plains Presbyterian Church has been reviewed. Engineering review
for current development can recommend approval after the following comments have been addressed:
The stormwater quality computations should be revised. On the plan, please show the drainage
area from the point of analysis used in the Simple Method Spreadsheet. The point of analysis
should be positioned at a reasonable location that would capture as much of the developed site
runoff as possible, but not the entire property. In addition, using sheet flow as a stormwater
quality measure is not appropriate for this site because water concentrates in the VDOT roadside
ditch or the 12" culvert before reaching a vegetated buffer.
A notable portion of the site drains to the roadside ditch on Route 22 and this should be shown
graphically. Also, the three areas specified in the spreadsheet (4.66 acres in project area, 5.15
acres totaled in the pre - development column, and 4.80 acres totaled in the post - development
column) should all be equal, but are not.
2. Engineering review will not require detention with Phase I due to the small area of site
disturbance. However, when Phase II is constructed detention will need to be provided and the
pre - development rates will need to be computed by using the condition of the site as it exists now,
before the construction of the Fellowship Hall.
The existing entrance to the parking lot should be improved at this time so that one safe
connection to a public street is provided. The entrance should be located where shown on the
approved SP.
File: El_fsp_PBC_sdp200800178.doc