Mowat Construction Company: Projects
- Alaska
- Washington
- Fremont Bridge
- Newport Way to I90 Widening
- Green River Bridge
- Snohomish Machias Bridge
- Sauk River Bridge Replacement
- York Bridge Replacement
- Aurora Bridge
- Edgewick Bridge Replacement
- SR 16, Union to Jackson Steel
- High Bridge Replacement
- Nuclear Fuel Canister Storage Building
- SR 16, Sprague to Snake Lake
- Meydenbauer Bridge Replacement
- I-5, 2nd St. Bridge
- SR 16, Union to Jackson
- York Bridge Superstructure
- Seattle Freeway Park
- Seattle Westlake Park
- Weller Street Elevated Pedestrian Walkway
- Eastgate Transit Access
- Seatac South 160th St. Loop
- Oregon
- Idaho
- Nevada
- Alaska
Mowat Construction Company: Projects
Rainbow Bridge
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| Phase: | 1 |
| Client/Owner: | Idaho Transportation Department |
| Location: | Valley County, ID |
| Cost: | $3,300,000 (Total Contract Value) |
Awards: International Concrete Repair – 2007 Project of the Year
Rainbow Bridge is the largest single-span concrete arch structure in Idaho. Built in 1933, it exemplifies a conscious effort to meld a modern structure with a picturesque natural setting. This project involved retrofitting the concrete arch, replacing decorative concrete rail, replacing columns and stringer ends, repairing delamination, and performing corrosion mitigation. The mitigation process involved electrochemical chloride extraction and re-alkalization of the corroding and chloride contaminated concrete. This required an extensive access and containment platform. An overhang bridge inspection truck with 33 feet of under bridge reach was utilized for access to critical areas.