Mowat Construction Company: Transit: Westside Corridor Project Line Section 5A, Westside LRT Tunnel 
- 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: Transit: Westside Corridor Project Line Section 5A, Westside LRT Tunnel 
Westside Corridor Project Line Section 5A, Westside LRT Tunnel
Move your mouse over the left side thumbnails to change the main image
| Client/Owner: | Tri-Met |
| Location: | Multnomah, OR |
| Cost: | $8,600,000 (Total Contract Value) |
| Awards | Excellence in Concrete, Oregon Chapter American Concrete Institute |
This portion of the 18-mile Westside MAX extension, known as the Blue Line, provides light rail transit service between downtown Portland and the suburbs of Beaverton and Hillsboro. Daily ridership averages 28,400 passengers. Running parallel to Highway 26, sound walls were constructed working with limited access and the hazard of numerous overhead power lines. Tieback-anchored tangent pile retaining walls finished the East Portal's 500-foot-long cut and cover tunnel structure. The West Portal included architectural finishes or stone facings on both the tieback-anchored soldier pile retaining walls and the cantilever retaining walls. The West Vent Shaft Headhouse was constructed to contain permanent mechanical and electrical equipment.