In our early years Hamilton was one of many small contractors in Oregon providing small bridge and highway work; today Hamilton’s core division is one of the Northwest’s largest, tackling the most complex jobs throughout the Pacific Northwest. We have built over 300 bridges in Oregon and Washington alone. Hamilton has the experience, equipment, capacity and people to do quality work, on time and on budget.
In Hamilton ODOT has a partner that has exceeded our expectations. From its commitment to the community, to its flexibility and responsiveness to design challenges, Hamilton has been instrumental in this project’s success.
Matthew Garrett, Director, Oregon Dept. of Transportation
Start Date: May 2009 / End Date: December 2013
Oregon Department of Transportation’s I-5 Willamette River Bridge project included the construction of two new, uniquely designed arch bridges on I-5 over the Willamette River. Approximately 1,800 feet long each, the structures feature a combination of deck arch and cast-in-place box girder spans. The project also included the construction of a pedestrian/bicycle viaduct path along the riverbank and the realignment of a highly traveled bike path. As the prime contractor, Hamilton was responsible for all in-water work, utility relocation, and the demolition and removal of the old structure. The project area bordered neighboring cities, spanned a section of river housing a historical millrace, crossed the UPRR track, and encompassed a protected section of the public natural area. These factors required attention to detail, careful coordination, multi-agency collaboration, and continuous public outreach.
Our involvement during the preconstruction stage led to the success of the project; we assisted ODOT with community and stakeholder involvement, cost management, project scheduling, constructability reviews, environmental permitting, and traffic control plans. The two interstate bridges were completed four months ahead of schedule, and the project completed under budget. Our constant communication with stakeholders and the community, the calculated traffic management strategies, and our team’s overall responsiveness were critical to the success of the project.