YESLER BRIDGE REHABILITATION PROJECT, YESLER WAY OVER 4TH AVENUE S.
IMCO is working for the City of Seattle on the historic Yesler Bridge to remove the existing bridge and construct a new pier foundation and abutment (a structure built to support the lateral pressure of an arch or span at the ends of a bridge). IMCO will also be performing rehabilitation of the existing abutment and historic elements, building a new steel girder bridge, and making improvements to sidewalks, roadway surfaces, and existing railings for improved pedestrian and traffic safety. Historical elements such as decorative pedestrian railings, fascia girders, girder columns and cladding, and ornamental capitals and corbels, will be carefully removed, rehabilitated and re-incorporated into the new construction. This will ensure that the key historical features of the bridge will be preserved.
The bridge connects the east and west arterial across I-5 and is a vital route for residents, commuters, and workers. Yesler Way and Terrace Street will be closed during the life of the project, but vehicle and pedestrian traffic on 4th Avenue must be maintained, and IMCO must provide access to existing buildings located near the work area. This project requires tough scheduling in tight work areas, while keeping existing facilities operating during construction.