HomeMy WebLinkAboutSUB200900159 Review Comments Final Plat 2009-12-08*-&A
County of Albemarle
Department of Community Development
The final plat for the Kerly 2 -Lot Subdivision, received on 16 November 2009, has been reviewed.
Engineering review can recommend approval to this plat once the following comments are satisfied.
1. The county GIS system shows a 2.25 acre parcel, TMP 93 -26B, at the entrance on Route 53.
Please clarify. The existence of this parcel would require a portion of the private driveway to meet
the standard for a 3 -5 lot street which includes road plan and profiles, a SWM plan, and private
street approval by the Planning Commission.[14 -232 and 14 -412]
2. The current private road shown on the plat crosses a stream buffer. Per 17- 320.D.6, one stream
crossing is allowed for each parcel that existed on May 7th 2008. Any additional stream crossings
will require the approval of the County Engineer or Board of Supervisors.
However, since the stream crossing has already been constructed, the county will need the owner
to meet all requirements of section 17 -320.13 which includes (a) calculations proving that the
culvert passes the 10 -year storm without overtopping the driveway [17- 320.D.1.b], (b)
stabilization of the outlet and the upstream and downstream embankments [17- 320.D.2], (c)
approval of a mitigation plan to offset buffer disturbance, and (d) proof of permits from the Army
Corps and Virginia DEQ for disturbance within the stream. The mitigation plan will require a
WPO application (found here) and a $85 fee. Please refer to the design manual (found here) for
more information on mitigation plans.
3. The private street must be no steeper than 16%. By using the County GIS topography to analyze
the existing access road grade, it appears this standard may not be met in a few places along the
driveway. For the steepest portion of the driveway (between 100ft and 400ft from the ridge where
the farm building is currently being constructed), please provide field run spot elevations to
determine whether the existing access road must be adjusted or not to meet the county standard.
[14-412.A.11
Memorandum
To:
Elizabeth Marotta, Current Development Project Planner
From:
Phil Custer, Current Development engineering review
Date:
8 December 2009
Subject:
Kerly 2 -Lot Subdivision Plat (SUB- 2009 - 00159)
The final plat for the Kerly 2 -Lot Subdivision, received on 16 November 2009, has been reviewed.
Engineering review can recommend approval to this plat once the following comments are satisfied.
1. The county GIS system shows a 2.25 acre parcel, TMP 93 -26B, at the entrance on Route 53.
Please clarify. The existence of this parcel would require a portion of the private driveway to meet
the standard for a 3 -5 lot street which includes road plan and profiles, a SWM plan, and private
street approval by the Planning Commission.[14 -232 and 14 -412]
2. The current private road shown on the plat crosses a stream buffer. Per 17- 320.D.6, one stream
crossing is allowed for each parcel that existed on May 7th 2008. Any additional stream crossings
will require the approval of the County Engineer or Board of Supervisors.
However, since the stream crossing has already been constructed, the county will need the owner
to meet all requirements of section 17 -320.13 which includes (a) calculations proving that the
culvert passes the 10 -year storm without overtopping the driveway [17- 320.D.1.b], (b)
stabilization of the outlet and the upstream and downstream embankments [17- 320.D.2], (c)
approval of a mitigation plan to offset buffer disturbance, and (d) proof of permits from the Army
Corps and Virginia DEQ for disturbance within the stream. The mitigation plan will require a
WPO application (found here) and a $85 fee. Please refer to the design manual (found here) for
more information on mitigation plans.
3. The private street must be no steeper than 16%. By using the County GIS topography to analyze
the existing access road grade, it appears this standard may not be met in a few places along the
driveway. For the steepest portion of the driveway (between 100ft and 400ft from the ridge where
the farm building is currently being constructed), please provide field run spot elevations to
determine whether the existing access road must be adjusted or not to meet the county standard.
[14-412.A.11