Roxbury
VT Route 12A, Bridge 17
Roxbury ER 0187(14)

Project Location: Town of Roxbury in Washington County on VT Route 12A over an Unnamed Brook. The bridge is located approximately 0.95 miles  north of the Granville/Roxbury town line.

This is an Emergency Relief (ER) project from Tropical Storm Irene. The original corrugated galvanized metal pipe (CGMP) was destroyed during Irene. A 60” CGMP was installed im-mediately following the storm to re-open VT 12A. Subsequent hydraulic analysis deter-mined that the 60” CGMP was undersized for this location. The proposed structure is a new precast concrete box (12’ wide by 8’ high). The clear opening for flow will be 12’ by 5’ as the box will include a 1 baffle and 3’ of stone fill inside the box to provide natural channel bottom through the structure.

This project will be constructed over a long weekend as VT12A will be closed to vehicular traffic through the project site. We have worked with Central Vermont Regional Planning Commission and the towns of Granville and Roxbury to arrive at an acceptable weekend for this closure.

This project required the acquisition of minor sections of right-of-way to install the new precast concrete box and adequate stone fill for stream slope protection.

The Agency currently has a paving project Roxbury- Northfield ER STP 0187(13) planned for this section of VT 12A. We will be coordinating the design and construction of these two projects to minimize construction items and scheduling of the work during the 2016 construction season.