Wetmore Slough / Genessee Park

"The 1910 trestle that crossed the slough and turned southward along the shoreline (Lake Washington Boulevard) left high and dry was replaced with a fill by WPA (1937)."

"Genessee Park is a 57.7-acre (234,000 m2) park in the Rainier Valley neighborhood of Seattle, Washington. A waterway, Wetmore Slough, before the lowering of Lake Washington by nine feet in 1917 as part of the construction of the Lake Washington Ship Canal, it was purchased by the city in 1947 and used as a dump until 1963. Development of the park began in 1968. It also hosts Seafair hydroplane races and air shows every year."

Jennifer Ott, Lake Washington Boulevard (Seattle)

The southern section known as Lake Washington Boulevard extended from 43rd Avenue S to Colman Park.

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The section in the Mount Baker neighborhood south of Colman Park might have been blocked from the lake shore by a planned subdivision as it had been between Colman and Frink parks except for a law passed by the state legislature in 1907 to finance the state's participation in the Alaska-Yukon-Pacific Exposition. The law stipulated that the shore lands between the line of ordinary high water and the line of navigability belonged to the state, not the adjacent landowners. Anticipating the opening of the Lake Washington Ship Canal, which would lower the lake by about 9 feet and expose the shore lands, the state planned to sell the lands.

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In Colman Park there are three bridges crossed by the boulevard as it descends through the ravine to the lake. The upper one was designed specifically to accommodate pedestrians crossing under the roadway.

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