Underwater vehicle closes Locks until noon

The Army Corps of Engineers is closing both the large and small locks today from 10 a.m. to noon to retrieve a remotely operated underwater vehicle (ROV) that’s preventing fish from passing through the ladder.

Crews found the ROV blocking the locks’ saltwater drain system yesterday during an inspection of the adult salmon exclusion structure. “Our team immediately went into action when they realized the ROV was blocking the saltwater drain system,” said Marian Valentine, operations project manager for Lake Washington Ship Canal. “We plan to finish the repairs today and open the saltwater drain system, which will allow fish to pass through the fish ladder.” Boaters may call the lockmaster on duty at 206-783-7000 to verify that the locks are open.

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