SR 705 Elevated Roadway/Flyovers, USA

SR 705 Elevated Roadway/Flyovers, State of Washington, USA

This bridge is on a new East-West freeway SR705 developed to serve the city of Tacoma. The main freeway SR5 runs north-south in the state of Washington .The traffic that exists on the freeway for Tacoma down town had grown that the main arterial leading from the SR5 freeway to downtown Tacoma got congested, the new freeway SR705 is six lane facility mostly on bridge and retained fill because of expensive right –of –way .The project area is environmentally very sensitive, the soil are contaminated throughout the project site so foundations have been so designed that no material was removed from the project site. Some of the bridges are:

Sr. No.Bridge (Name)Bridge TypeSpan ArrangementTotal Length
1.FlyoverPost-tensioned concrete box girderVariesVarying in length from 110 feet to 225 feet