HomeMy WebLinkAboutSDP200900091 Review Comments Final Site Plan and Comps. 2009-12-17J �
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County of Albemarle
Department of Community Development
Memorand m
To: Gerald Gatobu, Principal Planner
From: Amy Pflaum, Engineering Review
Division: Current Development
Date: December 8, 2009 [DRAFT]
Subject: Arden Place Apartment Complex
The final site plan for the Arden Place Aparti
reviewed. Current Development Engineering
Final Site Plan Comments
1. Please show the proposed access easements to be
Is
Plan SDP200900091 & WPO200900062
submitted on No er 13, 2009, has been
rig comments:
int r the Carmike connection. [1 8- 32.7.4]
6. Please nate safety slabs (SL -1) in any storm sewer structure that is taller than 12 -feet (STR 48
& 50).
7. An existing "low spot" in the Carmike parking lot appears to be slightly shifted with this plan.
Where does stormwater that gathers in this low spot drain to? Is there an inlet or curb -cut in the
parking lot that directs it to the drainage way?
8. It appears that guardrail is necessary above the retaining wall between Building 5 and the
travelway to the Carmike parking lot. [18- 32.7.2]
9. The slope of the travelway to the Carmike Parking lot exceeds the maximum allowed under
Section 18- 4.12.17.a. The County Engineer may increase the maximum allowable slope provided
that no reasonable design alternative exists and the developer requests a waiver in writing. Due to
the constraints of meeting the grade of the existing parking lot, Current Development Engineering
will support this waiver request once it is submitted. [18- 4.12.17.a]
10. The location of the matchline on Sheet S -3 makes it difficult to review details of the proposed
Carmike connection crossing the existing drainageway. Are the Bridge Details on Sheet SWM -1
related to this crossing? Please provide more graphic information about the crossing on the street
plan and profile and the grading plan. Also provide the hydraulic computations.
Stormwater Management Plan Comments
11. The total area used to calculate pre- and post - development should be the same. The post -
development flow calculations account for only 9.64 acres, pposed to 10.69 acres used for pre -
development.
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