Location: Seattle, WA
The Alaskan Way Viaduct (SR99) is a double-decked elevated freeway located in downtown Seattle. In 2001, an earthquake damaged the viaduct and its supporting seawall which required the state to invest in emergency repairs. Boring a new tunnel began in 2013 and was completed in 2017. Detec Systems performed IntegriScan testing of the cold fluid applied on horizontals and verticals throughout construction. A total of 29 breaches were found, repaired and passed re-testing. The tunnel opened to traffic in 2019.
Interested in Electronic Leak Detection? Call 855.75.DETEC (855-753-3832) for assistance.