HomeMy WebLinkAboutSDP201300047 Review Comments Final Site Plan and Comps. 2013-11-14COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902-4596
Phone (434) 296-5832 Fax (434) 972-4126
Project: Hollymead Town Center Block IV -Final
Plan preparer: Dominion Engineering [fax 434-979-1681]
Owner or rep.: Post Office Land Trust
Plan received date: 31 Oct 2013
Date of comments: 6 Nov 2013
Reviewer: Michelle Roberge
Engineering has completed the Site Development Plan review. Please see below for the following
comments.
A. Site Development Plan (SDP201300047)
1. Please label proposed streets as public, private or alley. If streets are private/alley, please ensure it
meets private road standards from section 14-410 and 14-412.
[Revision 11 Comment not addressed. Please show crowned road with curb and gutter.
[Revision 21 Comment addressed. Also, per meeting on Sep 12, 2013 roads with 2% cross
slopes are acceptable.
I recommend aligning the far western entrance with the Laurel Park Subdivision entrance.
[Revision 11 Comment addressed.
3. Please provide typical sections and profiles for proposed street.
[Revision 11 Comment addressed.
[Revision 21 The profiles are now shown. The road with ribbon curb and 2% cross slopes
was discussed as approvable on Sept 12, 2013. However, the vertical alignment does not
work well on site. I recommend the following:
a) Reduce to 3 or 4 vertical curves for better transition (This # excludes entrance
curves).
b) Show the grade break from road to all driveways to not exceed 10%. Driveway
should still resemble grading on CG9D (section A -A). Label grades for each
driveway.
c) Revise vertical curve #10 to have a K value of 5, at a minimum.
4. Per 14-410 H, please show curb and gutter for proposed street. Please show standard entrance
gutter, CG -913, and improve runoff catchement by placing additional DI's. Also, a DI shall be
placed before intersections. Please provide a DI near lot 7.
[Revision 11 Comment not addressed. Provide curb and gutter for road with the standard
CG -91) for each driveway entrance. The painted white line is not recommended.
[Revision 21 A concrete ribbon was discussed as approvable. Please label on Sheet SP5A
where CG -2, CG -6, rolltop curb, ribbon curb should be constructed. Also, extend median to
curb between each lot from 13 to 16 and between lot 20 and 21.
Engineering Review Comments
Page 2 of 3
5. Please show the sight distances. 280' is VDOT requirement for 25 mph roads. Also, per 18-4.12
please ensure 100' sight distance for travelways within site.
[Revision 11 Comment not addressed. Remove trees within all required sight distances.
[Revision 21 Comment addressed.
6. Lots 15-22 do not have adequate frontage access due to horizontal curve. Please revise.
[Revision 11 Comment addressed.
7. All entrances shall be a 4% grade or less for a minimum of 40' from the edge of pavement at the
intersected street. The entrance on the far west is about 6% for 20'.
[Revision 11 Comment partially addressed. Ensure the flow line on CG -11 entrance is
aligned with flow line to DI -1. Also, update profile to show the sag at flow line.
[Revision 21 Comment addressed.
8. Please provide the Albemarle County general construction notes for streets.
[Revision 11 Comment addressed.
9. Please provide traffic control signage.
[Revision 11 Comment addressed.
10. Please ensure all items in proffer 2 are addressed prior to approval of site plan. Per proffer 3, "All
road improvements listed in proffer 2 above shall be substantially completed prior to the issuance
of the first Certificate of Occupancy in Area C..."
[Revision 11 Comment not addressed.
[Revision 21 Comment acknowledged by developer.
11. Please label ROW on private roads.
[Revision 21 Comment addressed.
12. Please provide street signs.
[Revision 21 Comment addressed.
13. Change the white hatching of light duty pavement on SPS.
[Revision 21 Comment addressed.
14. Clearly show limits of removal for the 15" RCP on SP3.
[Revision 21 Comment addressed.
15. Show handicap ramp symbols on plans and not just labels.
[Revision 21 Comment addressed.
16. It appears there is a concrete median between each driveway. Will this be concrete, a planting
strip or gravel? Please clarify. Also, note a minimum of 3' should be provided for a concrete
median.
[Revision 21 Comment addressed, but the grading for median will not work well in areas
where there is a 1' drop. I recommend providing a 1' wall to make up the elevation change
between lots with a 1' drop or provide an alternative solution.
17. Clarify what will be in the 6' median between each driveway. Grass or gravel?
Engineering Review Comments
Page 3 of 3
[Revision 21 Comment addressed, but the grading for median will not work well in areas
where there is a 1' drop. I recommend providing a 1' wall to make up the elevation change
between lots with a 1' drop or provide an alternative solution.
18. Please label Laurel Park Lane as public or private.
[Revision 21 Comment addressed.
New Comment:
19. The pipe between structures 62 and 61 will be undersized when the drainage system for this
site is connected. Please refer to WPO201300058 comments.
Sincerely,
Michelle Roberge