image
image
image

SR520 - THE WORLD'S LONGEST FLOATING BRIDGE

When it came time to replace the world’s longest floating bridge with another even longer one, UTRS was tapped to provide corrosion control solutions for the project. The new bridge in Seattle, Washington, spans an astounding 7,708.5 feet over Lake Washington, which is more than 200 feet deep. UTRS performed a cathodic protection design build for corrosion mitigation on all of the bridge’s concrete and high-strength steel structures. UTRS developed a closely coupled anode system to mitigate corrosion on high-strength steel anchor cables that were electrically bonded to a massive floating concrete structure. UTRS also developed an anode system to protect the bridge’s 23 floating pontoons, each of which is the length of a football field. In addition to protecting dilution wells, UTRS also fully integrated data readings and remote interruption capabilities into the SCADA system. Any one of the 71 rectifiers on the bridge can be remotely monitored and interrupted.

PROJECT INFO

SERVICES

CORROSION CONTROL, CP, ANODE SYSTEM

LOCATION

SEATTLE, WA