HomeMy WebLinkAboutSUB201300159 Review Comments Road Plan and Comps. 2013-12-10COMMONWEALTH of VIRQINIA
DEPARTMENT OF TRANSPORTATION
1601 Orange Road
Culpeper, Virginia 22701 -3819
Gregory A. Whirley
Commissioner of Highways
December 9, 2013
Mr. Michael Koslow
County of Albemarle
Department of Community Development
401 McIntire Road
Charlottesville, VA 22902
Re: SUB- 2013 - 000159 Houndstooth
Dear Mr. Koslow:
We have reviewed the road plans for Houndstooth dated 1012/13 with revisions dated 11/18/13 as submitted by
Roger W. Ray & Associates, Inc. and offer the following comments:
1. The standards for a Low - Volume (Commercial Entrance) apply only if the proposed road would remain
private and not taken into the State Highway System. As this road is proposed to be dedicated to VDOT,
the connection must meet the intersection sight distance. The connection likely meets the requirements;
however, the sight lines are not shown in accordance with the sight triangles as shown in the Road Design
Manual. The sight distance should be measured at a point that is 14.5' off of the edge of the closest
through travel lane. The sight line appears to be measured at a point that is 10' of the edge of the travel
lane. In addition, this point should be located 4' from the center of the proposed road and measured to the
midpoint of each travel lane that the sight distance is being checked for.
2. Note that the typical section has a note referencing GS -SSR. While many of the standards are the same, the
SSR standards are not applicable to projects submitted after July 1, 2009. Projects submitted after this date
are required to meet the SSAR standards which are found in Appendix B(1) of the Road Design Manual.
3. The reference to Section 8.3.1.2 in the VDOT Drainage Manual is primarily streams and higher volume
channels. Based on the grading plan that is provided, the majority of the 17.6 acres draining to the
proposed culvert does not drain into the proposed roadside channel. Per the calculations provided, the
volumes of flow in the roadside channel for the 10 -year storm are relatively low. This culvert should be
oriented perpendicular to the roadway.
4. CBRs will be required for the new road and the pavement structure will need to be able to accommodate
actual field conditions. The D, value of 6.4 is acceptable for design and likely to be adequate for the final
pavement structure.
If you need additional information concerning this project please feel free contact me.
Sincerely,
<M� 76A
Troy ustin, P.E.
Area Land Use Engineer
Culpeper District
VirginiaDOT.org
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