HomeMy WebLinkAboutWPO202100051 Correspondence 2021-10-25I® COLLINS ENGINEERING
October 25, 2021
Geoff Elsie
Department of Community Development
401 McIntire Road
Charlottesville, VA 22902
RE: TMP-99-0 Driveway Entrance Plan (WPO 202100051)
200 GARRETT ST, SUITE K CHARLOTTESVILLE VA 22902
��434.293.3719 PH 434.293.2813 FX
www.coll ns-eng ineeri ng.com
Thank you for your comments dated October 7tg on the above referenced project. Below are our responses to the
remaining comments on the road plans.
A. Stormwater Pollution Prevention Plan
1. No comments
B. Pollution Prevention Plan
1. Acknowledged that the PPP is not required
C. Stormwater Management Plan
1. Acknowledged that a formal SWMP plan is not required, thank you!
2. The only disturbance within the stream buffer is for the driveway entrance. Typically, if that is our
only option, mitigation is not required for the impact. In addition, we can only provide mitigation
within the existing stream buffer area on the property. We only have a small sliver of stream buffer
on the site, and it overlaps with the existing critical slopes on the property, and this area is also
currently wooded. Based on all these existing conditions, stream buffer mitigation can not be
achieved onsite, and therefore the mitigation is not required for the project.
D. Erosion and Sediment Control Plan
1. A channel has been added on the downhill side of the driveway, as requested.
2. The channel sizing, details, velocity,depth, width etc has been added/labeled on the plans for the
proposed roadside ditches.
3. A note has been added to the plan sheet (note #3) indicating that the plan is for a single family
driveway.
4. The maximum slope is shown on the provided profile, but we have added a label for the road
indicating the surface and width. This has also been labeled on the plan sheet.
5. The label for the silt fence has been fixed.
6. Both PS and TS symbol were included on the plans, but we have added additional symbols for clarity.
7. Additional TS and PS symbols have been added to the stockpile area.
8. A DD has been added above the driveway to help direct run-off around the driveway during
construction, this was a good idea.
9. The temporary seeding schedule was included in the original plans in the bottom left corner. I think
this addresses this requirement.
10. The outlet protection riprap information has been added to the plans.
11. There are no current easements on the property.
12. The added roadside ditch on the low side of the road will capture and route the run-off away form
the stockpile area. I think this roadside ditch takes care of protecting the stockpile area and area
below the stockpile. Also, the stockpile should be spread and seeded within the 12 months, no
problem.
Should you have any questions, please feel free to contact Scott Collins at Scott@collins-engineering.com.
Sincerely,
Scott Collins, PE