I-74 over Vermillion River in Danville, IL was an existing (2) girder fracture critical 750’ long structure built in 1962 and is being replaced with a redundant (6) girder steel plate girder structure, re-using the same substructure units. Westbrook provided all aspects of the construction engineering.
Westbrook analyzed the existing I-74 over Vermillion River structure throughout removal operation stages. Existing superstructure removal was performed with an excavator on the structure removing concrete deck panels. Steel girders were picked with a crane below the structure, on a Westbrook designed causeway and temporary bridge to maintain river flow.
The new structure girder erection and all aspects of the stability of the girders during construction was designed by Westbrook. We also provided designs for the bridge deck falsework, falsework at the vaulted abutment span, and temporary work platforms.
Phase one can be seen within the photos attached and has been completed. Phase 2 is currently in motion; just recently the pier caps have been poured.
