HomeMy WebLinkAboutSUB201300091 Review Comments Road Plan and Comps. 2014-05-05Al
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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:
Plan preparer:
Owner or rep.:
Plan received date;
Date of comments:
Reviewer:
Cascadia Blocks 4 -7
Dominion Engineering
Redus VA Housing, LLC
17 Apr 2014
5 May 2014
Michelle Roberge
SUB201300091
[434-979-8121]
The third submittal of the road plan set (SUB201300091) has received Engineering Review. I have
no objections to the approval of this plan. Once I get all approvals from other agencies, VDOT,
Fire Rescue, and ACSA, this plan can be approved.
If you would like to phase the road plans, please submit the road plans for the phase you would
like to bond. I still need and a copy of the overall road plan to keep track of the phases as they
come in. Also, please note that the subdivision plat should match the phased road plan.
A. Application Information
1) A 12' tall retaining wall and two 8' tall retaining walls are proposed on
sheet SP 10. The Code of Development for Cascadia p. 24 states that walls over
6 -feet tall, as measured from top of wall to the top of the footer, shall be allowed
only at the discretion of the Director of Community Development. Per
correspondence with the Director on 7/10/2013:
a. The Department finds the 8' tall wall proposed behind Lots 56 -58
acceptable with any material.
Comment addressed
b. The Department does not find the 12' wall and other 8' wall proposed in
the Vegetative Buffer along the property line for Fontana Subdivision
acceptable pending any potential stream buffer incurrence (see comment 132).
It is imperative to keep grading outside of the 30' Vegetative Buffer. Two
alternative options available for these walls are:
1. A green wall (with vegetation in front of the vegetative buffer) of
maximum height 20' located outside of the vegetative buffer
(preferred option).
2. A series of terraced walls of maximum height 6' located outside
the vegetative buffer. Because they are visible from the street, these
walls should be made of a higher material quality (finished with
brick, interlocking concrete block or stacked fieldstone per p. 24 of
the Code of Development).
Comment addressed. All walls are green walls.
B. Existing Plan View Information
Engineering Review Comments
Page 2 of 3
1) Please label all existing contour elevations including those shown on detail 1 on
sheet SP8 as well as for proposed lots 79 -84 on sheet SP8.
Comment addressed.
2) An unnamed tributary to Rivanna River appears to run behind east end of project.
Please include a stream analysis to determine if this stream is a perennial or intermittent
stream.
Comment addressed.
C. Proposed Plan View Information
1) Some traffic signs appear to be missing including:
Stop sign at the the corner of Boulder Hill Lane and Delphi Lane
Label for stop sign at the corner of Oval Park Lane and Delphi Lane
Stop sign at Glissade Lane and Delphi Lane
Labels for stop signs at ends of Flat Waters Lane
Speed limit signs throughout the development
Street name signs throughout the development
Please include all required traffic signs on proposed road plans.
Comment addressed.
2) Please label all entrance and intersection radii including the corner of Glissade
Lane and Delphi Lane on sheet SP 10.
Comment addressed.
D. Street Profiles
1) Please label existing and proposed grade at each 50 feet.
Comment not addressed. Also, the ticker mark at every 50' is missing on
Delphi Lane and Boulder Hill Lane.
2) Please indicate proposed drainage structures on road profile sheets.
Comment addressed.
3) Please include cross drains (CD -1 or CD -2) at cut -fill transition points.
Comment addressed.
4) Please indicate road intersection stations in profile view.
Comment addressed.
E. Street Details
1) Please propose a pavement design on typical sections for each public and private
road proposed which supports proposed traffic loadings per 2009 VDOT Pavement
Design Guide for Subdivision and Secondary Roads in Virginia or equivalent.
Comment addressed. This will be followed up when CBRs are submitted during
construction.
2) Please specify 3000 psi strength requirement and 4" stone base for all proposed
sidewalks on road typical sections.
Comment addressed.
Engineering Review Comments
Page 3 of 3
3) Please propose a transition detail for roll top curbing proposed for Oval Park Lane
at proposed drainage structures.
Comment addressed. Rolltop curb has been removed. CG -9B entrances are shown
with CG -6 along pavement.
Community Development Engineering is available from 2:30 -4 PM on Thursdays to discuss these review
comments. Please contact Michelle Roberge at 434 - 296 -5832 or email mrobergegalbemarle.or to
schedule an appointment.