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Middle Road Bridge Replacement

 

Clarendon, Vermont

DuBois & King conducted planning, bridge type study, permitting, and engineering for this 85-ft-long structural steel and concrete deck bridge on cast-in-place concrete abutments. Performed an alignment and bridge type study for the rehabilitation of this historic truss bridge, which spans the Cold River, and evaluated alternatives for replacement. Performed detailed structural analysis based upon field measurements and as-built drawings of the existing truss. Given AASHTO roadway widths and HS-25 loading requirements, the existing truss bridge would have to be widened and the majority of the members replaced, thereby nullifying the bridge’s historical integrity.

Design services included: bridge geometry, roadway approaches, evaluation of current and future traffic usage, hydrologic and hydraulic analysis, and bridge abutment scour analysis. The new structure was designed to carry HS-25 truck loadings. The project was administered through VTrans’ Town Highway Bridge Program and designed in accordance with VTrans’ design process and AASHTO design criteria.

D&K was responsible for all permitting including wetland and fisheries evaluation and coordination with SHPO, VT ANR, and the USACE. Prepared NEPA documentation and coordinated archaeological studies within the project area.

  • Middle Road Bridge

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