HomeMy WebLinkAboutWPO201000024 Review Comments Erosion Control Plan 2010-08-09OF AL
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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:
Tabor Presbyterian Church Addition - Final [SDP201000030 & WP0201000024]
Plan preparer:
Eugene Ryang
[eryang @ waterstreetstudio.net]
Owner /Applicant:
Tabor Presbyterian Church
Plan received date:
23 April 2010
Rev. 1:
22 July 2010
Date of comments:
13 May 2010
Rev. 1:
9 August 2010
Reviewer:
John P. Diez — Engineering Technician
A. Final Site Plan
1. Please provide professional seal, signed and dated. [18- 32.6.1]
(Rev. 1) Comment has been addressed.
2. Please provide date for the topographic information. All topography should be at least visually
field verified by the designer within the last year. [18- 32.6.6]
(Rev. 1) Comment has been addressed.
3. Proposed sloped steeper than 3:! must have low maintenance (not grass) ground cover specified on
the plan.
(Rev. 1) Comment has been addressed.
4. All entrances must have VDOT designations (PE -1. CG -9a, etc.)
(Rev. 1) Comment has been addressed.
5. Please provide an entrance profile. Entrances must need exceed 4% grade for a distance of 40'
from the intersected street, measured anywhere in the entrance. [ 18- 4.12.17]
(Rev. 1) Comment has been addressed.
6. Please provide unobstructed sight distance lines at entrances, less than 10' x Speed Limit of
intersected streets, measured from a point 10' off the edge of pavement of the intersected streets.
(Rev. 1) Comment has been addressed.
7. VDOT approval must be obtained for any plans affecting public right -of -way.
(Rev. 1) Comment has been acknowledged.
8. Please label the biofilter on the plans.
(Rev. 1) Comment has been addressed.
9. It appears that the existing rock wall is interfering with the proposed culvert. Is the rock wall being
demolished? Additional comments may be forthcoming once more information of received.
(Rev. 1) Comment has been addressed. It is recommended that the wall not be demolished,
should it be designated as a history feature to the site. However, the County has no jurisdiction
over this matter.
10. Temporary grading and construction easements will be necessary from TMP 56A2 -1 -15.
(Rev. 1) The easements must be submitted for record keeping.
Albemarle County Community Development
Engineering Review Comments
Page 2 of 3
11. The drainage on Tabor Street must match with the Downtown Crozet Streetscape Project. Please
revise.
(Rev. 1) Comment has been addressed.
12. Please specify if services will be done in the existing structure during construction. If so,
additional comments may be forthcoming.
(Rev. 1) Comment has been addressed. Please specify where and how the attendants of the
church will park and reach the building during construction.
B. Stormwater Management Plan
1. This site is located within the watershed of the County maintained Lickinghole Creek SWM
facility. Per Board policy, all development within this watershed must pay a pro -rata fee in
exchange for the water quality treatment provided by the facility. This development is not required
to provide SWM quality onsite and County Engineering will not be reviewing this WPO
application for water quality. The pro -rata fee will be computed at the time of plan approval.
(Rev. 1) Comment has been acknowledged.
2. Please be consistent with the C- values for gravel. Please use .70 as your C- value.
(Rev. 1) Comment has been addressed.
3. This property is located within a new potential SWM district. Over the next several months, the
county will be shaping the parameters of this new district. If the SWM plan for this development is
not approved prior to the Board Action, the property may be subject to its governing requirements.
A possible outcome could be the collecting of a fee in exchange for providing detention
requirements for development within the watershed. Until the scope of this facility /district is more
refined, I recommend continuing with the current on -site detention design.
(Rev. 1) Comment has been acknowledged.
C. Erosion and Sediment Control Plan
4. Please provide limits of clearing and grading encompassing all disturbances, entrances, staging
and parking areas, areas where sediment laden runoff will cross, or any construction related
activities. This must match any landscape and conservation plans if necessary.
(Rev. 1) Comment has been addressed.
5. Please provide dust control (DC).
(Rev. 1) Comment has been addressed.
6. Please provide temporary seeding (TS) and permanent seeding (PS).
(Rev. 1) Comment has been addressed.
7. Please provide a stockpile location.
(Rev. 1) Comment has been addressed.
8. Please provide outlet protection (OP) for culvert #2.
(Rev. 1) Comment has not been addressed. Please label the outlet protection with an "OP ".
9. Permanent seeding must be placed immediately after grading the ditch on the east side of the site.
(Rev. 1) Comment has been addressed.
10. The silt fence on the proposed gravel travelway must be moved towards the west so the travelway
can be built.
(Rev. 1) Comment has been addressed.
Albemarle County Community Development
Engineering Review Comments
Page 3 of 3
11. Please provide a diversion dike between the sediment trap and the east side of the new gravel
entrance.
(Rev. 1) Comment has not been addressed. Please extend the diversion dike to the edge of the
travelway.
12. The wet storage length in the "wet storage optimization" must match the length at "Final Basin
Design Information" as well as on the plans.
(Rev. 1) Comment has been addressed.
Once these comments have been addressed, please submit 3 copies of the revised plans,
calculations, and narratives to Current Development Engineering.
Current Development Engineering is available from 2:30 -4 PM on Thursdays to discuss these review
comments. Please contact John Diez at 434 - 296 -5832 ext. 3025 or email jdiez @albemarle.org to schedule
an appointment.
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