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October 26, 2020
Highway/Transportation Over $50 million
Photo from Stacy and Witbeck
Stacy and Witbeck added 4.3 miles of trackwork, mostly in tunnels, to Sound Transit’s light rail system.
Northgate Link Extension trackwork
Location: Seattle
General contractor: Stacy and Witbeck
The Northgate Link Extension trackwork from UW Station to Northgate Station (N180) project was a 4.3-mile addition to Sound Transit’s light rail system. Stacy and Witbeck was the prime contractor, responsible for furnishing, installing and testing all trackwork and related elements within two 3.5-mile, 80-foot-deep parallel tunnels and across an elevated guideway between the existing University of Washington Station and the new Northgate Station. The project included construction of more than 7,000 linear feet of track installed on a floating slab system in the tunnels, 3.5 miles of traditional direct-fixation track on plinths (in tunnels, at grade and on an aerial structure), installation of embedded 26-kilovolt traction power cabling, and maintenance-access facilities such as a high-rail access pad, maintenance-of-way spur track, and a cast-in-place concrete stair tower for access to the tunnels from the maintenance facility above.
Other Stories:
- Grant Award: Construction
Public Building $20 Million to $50 Million - AGC/Moss Adams Community Service Award
- General Contractor Under 200,000 worker hours
- Specialty Contractor 250,000 to 500,000 worker hours
- Specialty Contractor Over 1 million worker hours
- Private Building $20 million to $50 million
- Highway/Transportation Under $5 million
- Private Building $5 million to $20 million
- Highway/Transportation $15 million to $50 million
- Highway/Civil under 500,000 worker hours
- Project Manager of the Year
- Superintendent of the Year
- General Contractor 200,000 to 350,000 worker hours
- General Contractor Over 500,000 worker hours
- Highway/Civil Over 500,000 worker hours
- Construction Manager Under 100,000 worker hours
- Public/Private Tenant Improvement over $5 million
- Public/Private Tenant Improvement Under $5 million
- Grand Award: Safety
General Contractor 350,000 to 500,000 worker hours - Champion of Diversity Award
- Excellence in Innovation
- Heavy Industrial Under $5 million
- Heavy Industrial Over $20 million
- Private Building $2 million to $5 million
- Private Building $50 million to $100 million
- Private Building over $100 million
- Public Building $50 million to $100 million
- Public Building Under $2 million
- Brian Salzgiver Safety Professional of the Year