The Alaska Contractor - Spring 2011 - Keep Trees
The Alaska Contractor - Spring 2011 - Keep Trees
The Alaska Contractor - Spring 2011 - Keep Trees
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SEWARD BREAKWATER EXTENSION<br />
In March 2010, WCC also began a $4.8 million project to<br />
shore up and extend the breakwater in Seward.<br />
“We had to take the nose off the existing breakwater and<br />
then tie into place the material. This was all constructed from<br />
barges because you couldn’t get to the site,” said West.<br />
photos: the al asKa sealife Center, universit y of al asKa anChor aGe and miCro speCialties inC.<br />
• 09.22.10 - <strong>The</strong> breakwater extension “breaks” the water line.<br />
• 10.28.10 - Excavator and barge placing rock on the breakwater extension.<br />
• 10.30.10 - First connection of the new extension with the existing breakwater.<br />
• 11.10.10 - Continued work with excavators and barge on the new breakwater extension.<br />
• 12.02.10 - Completed seamless extension of the breakwater.<br />
Marine construction in tough environments is what WCC<br />
is known for, but properly placing fi ll with an excavator from<br />
a fl oating barge is still no easy task.<br />
“We have a GPS system on our excavator so we always<br />
know exactly where the bucket is,” West said, but nonetheless<br />
the job proved diffi cult because the tolerances were<br />
extremely tight.<br />
“We were setting four-foot stone and the tolerance on<br />
the fi nished rock surface of the breakwater was minus zero<br />
plus six inches, so trying to fi t irregularly shaped 4-foot<br />
stones into that exact shape was a challenge,” West said.<br />
<strong>The</strong> project was completed in November 2010, and WCC<br />
worked with Brice Companies for the tug and barge, and<br />
TerraSond Limited provided surveying services.<br />
<strong>Spring</strong> <strong>2011</strong> <strong>The</strong> <strong>Alaska</strong> conTrAcTor 21