Case Studies

By Jim DowningSeattle Times staff reporter THE HOH RIVER, Jefferson County — The Hoh is the unruly teenager of Washington rivers. And it likes to eat. Four times, the Federal Highway Administration has funded emergency efforts to stop the river…

An auger cast pile, often known as a CFA pile, is formed by drilling into the ground with a hollow stemmed continuous flight auger to the required depth or degree of resistance. No casing is required. A high slump concrete…

Date: November 2008 Owner: Washington State Department of Transportation Job: SR 410 near Chinook Pass General Contractor: Pile Contractors, Inc. A slope washout that occurred last winter, three miles east of Chinook Pass, has been repaired and both lanes of…

Date: May 2007 Owner: Vulcan Properties Job: Seahawks Practice Facility and Office Building Location: Renton, Washington This project required drilled shafts to support the Seattle Seahawks Football teams’ Indoor Practice facility and Office Building. The project is located in Renton,…

Date:  January 2007 Owner:  Sound Transit Job: Sounder Commuter Rail, Reservation Connection, Embankment Remediation Phase 3 Location: Tacoma, Washington General Contractor: CA Carey Corporation This project involved supporting an embankment that carried the Sounder rail tracks over the soft Tacoma valley sand and silts.…