The U.S. Army Corps of Engineers plans to begin refilling Lake Washington gradually on Friday, Feb. 15, until it reaches an elevation of 22 feet this spring.

The annual refilling is targeting 22 feet to accommodate increased summer water use both recreationally and to allow for fish passage, navigation and salinity control, accord to the Corps.

“Private and commercial maritime interests along Lake Washington Ship Canal and in Lakes Washington and Union should expect a gradual rise from the winter level of 20 feet until the 22-foot target refill elevation is reached around June 1,” according to a news release.

The elevation is measured at the Chittenden Locks and could vary due to the gradient between the lake and locks. This maximum target elevation may remain in place through July.

The Corps encourages vessel owners to monitor lake elevations and adjust mooring lines as necessary.

Keep up with the Corps' Seattle District Reservoir Control Center here.

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