COVID-19
For the latest COVID-19 health guidance, statistics and resources, visit Coronavirus.wa.gov.
Contractor crews replaced 32 of the 108 steel anchor cables on the Interstate 90 floating bridges on Lake Washington, between Seattle and Mercer Island. The cables stabilize the bridges and help keep them in place.
The cables must be replaced every 25 to 30 years to maintain the safety and integrity of the bridges. The cables are subjected to years of pressure and stress from wind, waves, currents and changing traffic loads. Over time, the cables corrode, rust and fray. Most of the 32 cables that were replaced in this project were installed between 1983 and 1991. They range in length from 335 to 745 feet. Laid end to end, 15,630 feet of cable will be replaced, or just shy of three miles.
Northwest Region Communications
15700 Dayton Ave. N.
Seattle, WA 98133
NWPublicAffairs@wsdot.wa.gov
206-440-4699
Anchor cables extend from the I-90 floating bridges into the water below to stabilize the structure and help keep them in place.