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Black Rapids Lockstation
Black Rapids Lockstation. The weir and the start of the dam across the Rideau River are visible to the right of the photograph..
© Parks Canada

15,0 km – 15,1 km

Black Rapids Lockstation is located at a bend in the Rideau River, with the lock creating an island from which a spillway dam stretches across the river. This dam establishes a constant water level for navigation of an 8-km slackwater section, reaching to Long Island Lockstation. Two stoplog weirs facilitate adjustment of the water level of the upstream slackwater section.

Cultural Resources

One lock – A single lock with a lift of 2,8 m, 1830. CRM1.

Lockmaster’s house – A two-storey frame house, 1914. CRM2.

Spillway dam – A concrete structure consisting of three spillway sections and three piers, on the location of an earlier dam, 1950. CRM2.

Weirs – Two reinforced concrete stoplog weirs of one bay each, 1925 and 1950. CRM2.

The building of the original dam caused many problems, and the dam was vulnerable to spring flooding
The building of the original dam caused many problems, and the dam was vulnerable to spring flooding. The present dam was builton the original site in 1950.
© Parks Canada
The lock was originally manually operated
The lock was originally manually operated, but was electrified in 1969.
© Parks Canada

Black Rapids Lockstation to Long Island Lockstation

15,1 km – 23,3 km

This 8,2-km slackwater section was created by the spillway dam at Black Rapids. In this slackwater section, the canal is bordered by wetlands, including the Chapman Mills Conservation Area.

The lock was originally manually operated
The spillway dam at Black Rapids created a broad slackwater section of the Rideau River stretching from Black Rapids to Long Island.
© Parks Canada
The lock was originally manually operated
Looking north from Long Island Lockstation toward Black Rapids. Wooded shores and wetlands characterize this slackwater section.
© Parks Canada

 

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