Seattle breaks ground on S.R. 99 tunnel

SR 99 tunnel concept

SR 99 tunnel concept

FHWA Director Mendez was on hand last month as WSDOT broke ground on the SR 99 tunnel, also known as the Alaskan Way Viaduct Replacement Tunnel. The project is expected to cost upwards of $2B and be completed in 2015. [Source: Roads And Bridges via ASCE SmartBrief. Image: WSDOT]