The Danby Bridge 9 project will replace the existing bridge, which is in fair condition but has a substandard width, as well as poor horizontal and vertical alignment, with a new bridge on an improved alignment meeting all the current design standards. The existing bridge is a single span, rolled beam bridge constructed in 1933. Bridge 9 is 74-feet in length and has a deck and substructure that are in fair condition and beams that are in satisfactory condition but have significant rusting.

VTrans evaluated alternatives for rehabilitation or replacement of the bridge in an engineering study completed in January 2015. The study assessed the proposed design criteria for the bridge and roadway alignment, right of way impacts, hydraulics and historical and archaeological resources. While identifying resources in the location, it was discovered that there may be some potential archaeological remains in the vicinity of the site which will need to be left undisturbed during the project. Several alternatives were considered for this project including no action, deck replacement, superstructure replacement, and full bridge replacement both on and off alignment. Given the age and condition of the structure, the engineering study recommended a full bridge replacement on an improved horizontal and vertical alignment.

The new bridge will be comprised of a curved girder superstructure and an integral abutment substructure. The bridge will have two nine-foot lanes with three-foot shoulders on each side, which meets Vermont State Design Standards. The span will be 86-feet in length.

It is anticipated that the bridge will be constructed in the summer of 2018. During construction the bridge and FAS 130/ TH 1 (Brook Road) will be closed. Traffic will be maintained on a short detour during construction. Temporary single lane closures with alternating traffic may be necessary prior to and following the bridge closure.