I-405/SR 167 Interchange Direct Connector

Location: 
Renton, WA
Client: 
Washington State Department of Transportation
Contract Value: 
$116,000,000
Year Completed: 
2019
Expertise: 
Washington State Department of Transportation has awarded Atkinson a $116 million design-build contract for the I-405/SR 167 Interchange Direct Connector in Renton, WA. Jacobs Engineering is the design engineer. 
 
Atkinson will construct a direct connector flyover bridge to join the northbound and southbound SR 167 high occupancy toll (HOT) lanes with the I-405 high occupancy vehicle (HOV) lanes by reconstructing portions of SR 167 and I-405 to accommodate the new direct connector ramps in the median. The project scope of work includes seismically retrofitting and widening the existing I-405 bridge over SR 515 and replacing the Rolling Hills Creek culvert with a fish passable structure under SR 167. The team also will move an existing noise wall to a new location and construct retaining walls, stormwater facilities, utilities, concrete and asphalt pavement, illumination, intelligent transportation systems, toll system infrastructure, and manage traffic control to this high volume interchange.