Culvert Replacement Project
Owner: Town of Killington
Location: Thundering Brook Road
Structural Engineer: Eckman Engineering
Geotechnical Engineer: M&W Soils Engineering
General Contractor: Cold River Bridges
Type of Project
Permit Programs
Project Scope:
The Ottauquachee River flowed beneath Thundering Brook Road through three 84” corrugated metal pipe arch culverts. While the velocity in the river was generally moderate to slow, ice and debris damage had deteriorated the inlets, and age had rotted the inverts, leaving the structural integrity in question.
After TS Irene, the town of Killington engaged in a culvert assessment and determined that the three arch pipes needed to be replaced.
The Vermont Agency of Natural Resources required a clear span structure. The bridge abutments needed to be located outside normal high water level, resulting in a 38 ft. bridge span.
The bridge design, a reinforced concrete deck with abutments and guardrails was designed and permitted. This resulted in achieving stream equilibrium where the culverts had previously represented a severe constriction in the river.
