Built in 1891, the historic Willimansett Bridge carries Route 116 over the Connecticut River and the Pioneer Valley Railroad. The bridge provides a vital link between the cities of Chicopee and Holyoke, Massachusetts and is a key driver for commerce in the area.
Benesch provided complex bridge design for a full rehabilitation of the historic 793 foot-long structure, consisting of four 170-foot long through truss spans and two 51-foot long through girder spans for the Massachusetts Department of Transportation. Project components included:
- In-depth bridge inspection utilizing special bridge rigging
- Rehabilitation of truss spans, including an Exodermic Bridge Deck System and metal grid sidewalk replacement
- Stringer, floor beam and truss repairs and strengthening
- Complete replacement of through girder spans with a 2-span continuous steel through girder superstructure; seismic analysis and retrofit based on a site specific seismic assessment
- Temporary bridges for pedestrian use during construction
- Temporary post tensioning was used to allow for a complete replacement of the bottom chords