HomeMy WebLinkAboutWPO201000057 Correspondence 2022-05-04200GARR ETT ST, SUITE K CHARLOTTESVILLE VA 22902
?' COLLINS ENGINEERING
_17434.293.3719 PH 434.293.2813 Fx
www.coII!ns-engineering.com
October 19, 2020
Albemarle County Community Development
Charlottesville, VA 22902
Attn: Albemarle County Engineering Department
RE: Avinity SWM Asbuilt plan
Please allow this letter to serve as a Certification for the Avinity project Stormwater Management. Overall, the
stormwater management pond has been built and installed to the approved plans, as detailed on the attached
asbuilt plan. Below is a summary of the asbuilt construction elements that have been completed and shown on
the swm asbuilt plan:
1. The following items have been shown on the SWM plan:
a. A signed and sealed asbuilt has been provided for final review and approval.
b. The centerline of the emergency spillway and riser/outfall have been shown on the plans and labeled.
c. The asbuilt volumes have been shown on the plan in comparison to the design information. The
volumes of the asbuilt exceed the design volumes, and shown on the plans, meeting the
requirements of the pond.
d. The contour and labels have been shown within the asbuilt pond forthe design pond and asbuilt
pond contours.
2. The plantings for the aquatic bench landscaping have been shown and labeled.
3. The information on the earthen embankment construction has been shown on the plans.
4. The recorded SWM facility and access easements have been shown and labeled on the plan sheet.
5. The owner is providing the F&R reports on the embankment compaction.
6. Riprap has been shown and labeled on the emergency spillway since the spillway is on a fill slope. This was
done in accordance with the Virginia Erosion and Sediment Control handbook, as noted on the plan sheet.
7. Asbuilt pond and outfall structure field information has been shown on the plans and compared to the original
design information.
Please allow this letter to serve as the final certification that the stormwater management features within Avinity
project have been completed.
Sincerely, �n
5CB� /� n �
Scott Collins, PE