HomeMy WebLinkAboutSUB201400207 Review Comments Road Plan and Comps. 2015-04-21It
COMMONWEALTH of VIRGINIA
DEPARTMENT OF TRANSPORTATION
t501 Orange Road
Culpeper Vrgiroa 22701
Charles A. Kilpatrick, P.E.
Commissioner
April 21, 2015
Ms. Megan Yaniglos
Principal Planner
County of Albemarle
Department of Community Development
401 McIntire Road
Charlottesville, VA 22902
Re: SUB -2014- 000207 Cascadia, Blocks 1 -3 Road Plans
Dear Ms. Yaniglos:
We have reviewed the Final Road Plan for Cascadia, Blocks 1 -3 dated 12.11.1-14 with revisions
dated 3/12/15 as submitted by Dominion Engineering. It appears that these road plans include all
sheets included in the Final Site Development Plan for Cascadia, Blocks 1 -3 dated 1211114 with
revisions dated 3/12/15 as submitted by Dominion Engineering with the exception of sheets
SP24 and SP25, Sanitary Sewer Profiles. As a result, review comments are based on review of
the Final Road Plan and sheets SP24 and SP25 of the Final Site Development Plan and we offer
review comments as follows:
1. As discussed with the design engineer via telephone, the Cascadia Drive (Entry) typical
section will be revised such that the width of the section from face of curb to median of
the egress lanes will be 22' (as currently shown) and the width of the section from face of
curb to median of the ingress lane will be changed to 16'. The median will remain 10'
wide as currently shown.
2. On sheet SP 11, the on- street parking Delphi Lane between approximately station 10 +00
and 12 +00 will be obstructing the available sight distance at the intersection of Delphi
Drive and Delphi Lane.
3. Crosswalks should be located between the stop sign and the intersection. The location of
the crosswalk at the intersection of Marietta Drive and Delphi Drive should be revised.
4. In general, CG- I2s should be oriented at each crosswalk such that it does not direct a
pedestrian towards the intersection. The orientation of the following crosswalk locations
should be looked at to see if the CG- I2s could be oriented differently:
a. Terrace Lane /Marietta Drive
b. Delphi Lane /Delphi Drive
c. Delphi Drive/Terrace Lane
d. Cascadia Drive /Route 20 (no crosswalk, but the CG -12s direct towards Route 20)
5. Both sides of Delphi Drive between Knoll Lane and Delphi Lane should be signed as no
parking so that the sight distance for Knoll Lane is not obstructed by parked vehicles.
6. On sheet SP 14, the CG- 12 at the intersection of Terrace Lane and Delphi Lane does not
align with the crosswalk. Also, the stop sign at this location appears to be on the wrong
side of the crosswalk.
7. The edge striping along the east side of Route 20 should align with the gutter pan of the
Cascadia Drive connection. This comment is based on the north side of the Cascadia
Drive connection as shown on sheet SP 16A.
8. The transition length for the proposed left turn lane in Route 20 may be 300' as indicated
in Appendix F of the Road Design manual and as requested by the design engineer via e-
mail.
9. The transition length should be measured with a 75' offset from the centerline of
Cascadia Drive to the south as shown in Appendix F of the Road Design Manual. The
transition length should begin at the beginning of the left turn lane taper to the north as
shown in Appendix F of the Road Design Manual.
10. On sheet SP 19, the length of storm structure 38 is shown as X in the profile. The actual
length of this structure should be shown in the profile.
11. Spot elevations should be provided at the intersection of Delphi Drive and Terrace Lane
to ensure positive drainage to storm structure 32.
12. As discussed with the design engineer and developer, the section of Marietta Drive
adjacent to lots 22 and 23 cannot be accepted into the Secondary System for maintenance
by VDOT without a turnaround. If the current design will be acceptable to the County,
this section of roadway will remain privately owned and maintained.
If you need any additional information concerning this project or would like to meet to discuss
further, please do not hesitate to contact me at (434) 422 -9782.
Sincerely,
In�
Troy Austin, P.E.
Area Land Use Engineer
Culpeper District
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