Structure Type: built works - infrastructure - transportation structures
Designers: [unspecified]
Dates: constructed 1896
This lock and canal combination allowed steamboats the opportunity to bypass a treacherous section of the Columbia River, the Cascades Rapids. This structure was in use until the 1938, when the reservoir created by the Bonneville Dam covered it. A portion of the upper lock is still above the waterline, and a feature within the Cascade Locks Marine Park. The park is listed on the National Register of Historic Places.
There were two locks--lower and upper-- and a 3,000-foot-long canal in this transport mechanism.
PCAD id: 14602