Giant Logjams Built to Protect Highway

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 from gobbling up a stretch of U.S. Highway 101 fifteen miles south of Forks, Clallam…

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AUGERCAST PILING

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 grout mix is then pumped down the stem of the auger. While the grout is…

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Seahawks Practice Facility and Office Building Drilled Shafts into Rock

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, Washington between the I‐405 freeway and Lake Washington. The soils were saturated fills 30 to…

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30 Inch Augercast Piles

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. The embankment was settling at an alarming rate and the embankment base was expanding. There…

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