HomeMy WebLinkAboutSUB201300159 Review Comments Road Plan and Comps. 2013-10-29R
COMMONWEAL'T'H of VIRGINIA
DEPARTMENT OF TRANSPORTATION
1601 Orange Road
Culpeper, Virginia 22701 -3819
Gregory A. Whirley
Commissioner of Highways
October 29, 2013
Mr. Michael Koslow
County of Albemarle
Department of Community Development
401 McIntire Road
Charlottesville, VA 22902
Re: SUB2013- 000159 Houndstooth
Dear Mr. Koslow:
We have reviewed the road plan for the Houndstooth dated October 2, 2013 as submitted by
Roger W. Ray & Associates, Inc. and offer the following comments:
1. The sight lines need to be shown on the plan so that the available sight distance can be
verified.
2. The sight easements should be located 5' behind the sight lines.
3. Does the turn lane warrant analysis call for the 50' taper? If so, there should be a taper
on the opposite side of the entrance as well.
4. The offset distance for the taper should be shown on the plan.
5. The distance from the centerline of the proposed road to the centerline of the nearest
commercial entrance /street intersection in each direction needs to be provided to verify
compliance with the Access Management Regulations. It appears that Silas Jackson Lane
and Woodland Road are the nearest intersections.
6. The roadway width appears to scale to 20'. The typical section shows a 10' lane and a 9'
lane. The lane widths should be the same and should be in compliance with the Road
Design Manual, Appendix B(1).
7. The typical section is not applicable to a large portion of the roadway as the majority of
the roadway has a roadside ditch on both sides of the road.
8. The culvert does not appear to line up with the 20' permanent easement shown on the
plan.
9. The culvert needs to cross the roadway perpendicularly.
10. There needs to be more topographic information at the inverts of the culvert to show how
the roadside ditches will connect with the culvert.
11. The typical section needs to be in compliance with Appendix B(1) of the Road Design
Manual. For a pavement width of 20', parking will not be allowed on either side of the
road and No Parking signs need to be provided.
12. Note 5 references the approved erosion control plan. An erosion and sediment control
plan was not provided with the submittal. An erosion and sediment control plan needs to
be provided.
13. Note 9 references guardrail locations. I did not see where guardrail is shown on the plan.
This note also indicates that guardrail length, locations, and end treatments will be field
determined at the time of construction. The warrants for guardrail need to be provided by
the designer and verified by VDOT during the construction plan review.
14. Note 12 references ditch lining. The appropriate lining should be determined based on
the hydraulic calculations.
15. The parcel information needs to be added to the plan. At minimum, this information
should include tax map parcel, landowner, landowner address and telephone number.
16. How was the DR = 6.4 derived? I believe that this value should be higher than 6.4.
17. The hydraulic calculations provided for the ditch are for a QZ storm which is used to
determine velocity. The Qia storm needs to also be evaluated for capacity. In addition,
the drainage areas for each segment of the evaluation should be provided as well as the
derivation of the C- factor used in the calculations.
18. Additional information showing how the input values into the culvert form was derived
needs to be provided.
If additional information is needed concerning this project, please feel free to contact me.
Sincerely,
Troy Austin, P.E.
Area Land Use Engineer
Culpeper District
VirginiaDOT.org
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