HomeMy WebLinkAboutZMA201400008 Review Comments Zoning Map Amendment 2014-12-05 (2)Phone 434 - 296 -5832
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County of Albemarle
Department of Community Development
401 McIntire Road,
Charlottesville, VA, 22902
Memorandum
To: Rachel Falkenstein
From: Michelle Roberge, Engineering Department
Division: Engineering
Date: December 3, 2014
Subject: ZMA201400008 CMA Properties, Inc
Fax 434 - 972 -4126
I have reviewed the concept plan for the application noted above and offer the following comments for the
applicant. The comments are those that have been identified at this time. Additional comments may be added
or eliminated based on further review.
Please address for the concept layout.
1. The proposal shows additional parking spaces. It is not clear if the site will be paved. Please provide
pavement with curb and gutter for this proposed site. Per 4.12.15[a], "all parking areas consisting of four (4)
or more spaces shall be surfaced." Per 4.12.15[g], "[c]urbs shall be established at the edges of parking
areas or access aisles in the following circumstances: (1) in all commercial or institutional developments
requiring eight (8) or more parking spaces[.]"
2. The proposed parking layout is configured to maximize the amount of parking spaces. There are curvilinear
and skewed parking bays; however, this causes some parking aisles to intersect in a confusing manner. I
have highlighted the areas below. I recommend revising the parking bays to improve flow throughout the
site. Also, please clearly differentiate the inventory display parking from the public parking.
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3. There are plans for interconnectivity on the comp plan. I recommend showing interconnectivity within the
proposed site. I also recommend providing a travelway along the northern portion of the site since it may
resolve the misaligned parking aisle layout stated in comment 2.
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4. It appears that a wall may be necessary on the NW portion of the site. Please show on this conceptual plan.
5. The proposed grading on the SW portion is considered to be on managed slopes. The grading does not
appear to work with the existing contours. I recommend showing a conceptual grading that works to clarify if
grading easements on TMP145 -49 and TMP45 -101 B will be necessary.
6. Traffic impacts on Berkmar Drive need to be addressed. At a minimum, a left and right turn lane analysis
should be provided.
7. The NW portion of the site should be catergorized as open space in the Virginia Runoff Reduction Method
spreadsheet (on pre - developed portion of spreadsheet). This can be revised with the final VSMP
calculations.
8. More space for the biofilter should be provided. The biofilter surface area appears to be smaller than the
required surface area for the following reasons: 1) The forebay should not be included as part of the biofilter
surface area. 2) The seven (7) feet wide portion of the biofilter at the tail end do not work well. 3) A 4'
maximum depth of biofilter mix is allowed per VA Stormwater Design Specification No 9: Bioretention. The
proposed is 6'. This affects the area of the bioifilter. 4) "The bioretention surface area will be approximately
3% to 6% of the contributing drainage area," per VA Stormwater Design Specification No 9: Bioretention.
The proposed does not meet the minimum 3 %.
9. The tightly packed pea gravel will have a much lower porosity than the 12" stone. This can be revised with
the VSMP application.
10. Please note that channel protection analysis shall be provided with the VSMP application.
Please contact Michelle Roberge in the Engineering Dept at mroberge(Qalbemarle.org or 434 - 296 -5832 ext.
3458 for further information.