HomeMy WebLinkAboutSDP201200015 Review Comments Critical Slope Waiver 2012-03-27*—&A
County of Albemarle
Department of Community Development
Memorandum
To: Joanne, Current Development planning and zoning review
From: Max Greene, Current Development engineering review
Date: 27 March 2012
Subject: Ivy Fire Station/Kirtley Warehouse (SDP201200015) critical slope waiver request
The critical slope waiver request has been reviewed. The engineering analysis of the request follows:
Description of critical slope area and proposed disturbance:
This is an existing site originally the Kirtley Distributing Warehouse. The slopes are manmade; however,
the grading and construction of the slopes do not appear on an "approved" site plan on file. County Site
plan file # 209 from December 19, 1969 shows the slopes to be constructed. The proposed disturbance is
to construct a retaining wall for additional parking.
Areas
Acres
Total site
3.5 acres approximately
Critical slopes
.5
=-317o site
Critical slopes disturbed
0.06
1 12% of critical slopes
Exemptions to critical slopes waivers for driveways, roads and utilities without reasonable
alternative locations:
This disturbance is not exempt.
Compliance with Zoning Ordinance 18 -4.2:
"movement of soil and rock"
Proper retaining wall construction, control of drainage, and vegetative stabilization will prevent any
movement of soil.
"excessive stormwater runoff'
Stormwater runoff will be reduced in this area, as the slopes will be partly eliminated and stormwater
diverted into an armored receiving channel to prevent erosion.
"siltation"
Inspection and bonding by the County will ensure siltation control during construction. Proper
stabilization and maintenance will ensure long term stability.
"loss of aesthetic resource"
This area may be visible during the winter months from houses in the Farmington neighborhood.
"septic effluent"
This development is serviced by public sewer.
Based on the review above, there are no engineering concerns which prohibit the disturbance of the critical
slopes as shown.
file: CDDEl_csw_MRG_Ivy Fire Station - Kirtley Warehouse.doc