Black Rapids Lockstation
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![]() 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.
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 present dam was builton the original site in 1950. © Parks Canada |
![]() 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 spillway dam at Black Rapids created a broad slackwater section of the Rideau River stretching from Black Rapids to Long Island. © Parks Canada |
![]() Looking north from Long Island Lockstation toward Black Rapids. Wooded shores and wetlands characterize this slackwater section. © Parks Canada |
< Hogs Back Lockstation | Long Island Lockstation > |
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