WSDOT I405, I5 to SR169 Stage 2 Widening

Category Roads and Bridges
Location Renton, WA
Eng I-405 Corridor Design Builders

This project consists of a new $83.6 million half-diamond interchange on I-405 east of the I-405/SR 167 interchange at SR 515 to improve access to downtown Renton and relieve traffic demand on the I-405 interchanges at SR 167 and SR 169.  Inspections included soils, concrete, welding, asphalt and electrical.