Kris Olsen, WSDOT communications, 206-440-4704
Neither project will cause significant traffic delays
MAPLE VALLEY –Contractor crews working for the Washington State Department of Transportation will begin improvements to preserve bridges in two King County locations this month.
The first project is scheduled to begin Monday, July 14, above Taylor Creek near the intersection of State Route 18 and State Route 169 just north of Maple Valley. Contractors will use large boulders, rocks and an engineered log jams to redirect Taylor Creek to keep it from washing away soil that supports the bridge overhead. Adding logs and rocks to the creek will help protect the bridge while also improving habitat for migrating and spawning salmon.
The second bridge preservation project takes place underneath the State Route 410 Scatter Creek Bridge located just east of Enumclaw. The goal of this project is to reduce the risk of damage to the bridge in the event of an earthquake by wrapping steel jackets around the piers. This added support will strengthen the existing columns and help hold them together during an earthquake, reducing the possibility of bridge collapse.
Protection of the Scatter Creek Bridge is especially important because if it were damaged, there are no local roads to use as detours. A closure of the bridge could cut off the communities between Enumclaw and Crystal Mountain. This work is scheduled to begin Wednesday, July 16.
“These bridges are vital to the communities they serve,” said Aleta Borschowa, WSDOT engineer. “The preservation work we are doing will provide a longer lifespan for both structures.”
WSDOT awarded the bridge preservation project over Taylor Creek to Matia Contractors, Inc. The total project cost is $308,883.00. The SR 410 Scatter Creek Bridge project was awarded to Massana Construction Inc. The total project cost is $1,472,443.00. Both projects will wrap up by the end of 2014. No significant traffic delays are expected.