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Steel piles to replace wood piles on ATONs (Aids to Navigation) in the Columbia River.

Steel piles to replace wood piles on ATONs (Aids to Navigation) in the Columbia River.

This project for the US Coast Guard involved removing wooden piles that supported ATONs (Aids to Navigation) on the Columbia River and replacing them with steel piles. New signs and instruments were also installed. The work was conducted by Bergerson Construction, Inc. out of Astoria, Oregon. www.bergerson-const.com