Rehabilitation of Edmonds Lock, Dam and Weir

Rideau Canal National Historic Site

May 16, 2019-  Community Update: Construction Complete

The final phase of repairs to Edmonds Lock, Dam, and Weir is now complete. Work focused on historic masonry repairs to the weir. Similar to the previous two phases, work involved heritage stone masonry repairs including repointing, conservation-minded stone replacement and grouting. 

Previous Phases of Work

Work on Edmonds Lock 25, Dam and Weir began in 2016. In Phase 1, contractors replaced the retaining wall and improved roadway access along the earth dam. Heritage stone masonry rehabilitation on the lock and overflow dam, as well as minor work to the weir was also completed. A modified safety boom was installed.

In Phase 2, work included heritage stone masonry repairs to Edmonds Lock 25 and Weir. Public safety enhancements, such as new fencing and updated signage were also installed.

About Edmonds Lock 25, Dam and Weir

Edmonds Lock, Dam and Weir were constructed in the late 1820s to early 1830s. The lock was created with a 2.64 metre (eight foot, eight inch) lift, built on a clay foundation and wooden floor. A stone arch overflow dam was built with a waste weir installed to reduce the chance of floods. In the early 1840s, a stone lockmaster's house was constructed at the site then replaced with a two-storey house in 1905.

For More Information:

For more information about the Rideau Canal Historic Site, contact us at or follow us on Facebook and Twitter @RideauCanalNHS.


December 18, 2018-  Community Update: Ongoing Gate Replacements on the Rideau Canal
September 14, 2018- 
Community Update: Final Phase of Work to Begin
April 27, 2018: 
Community Update: Phase Two of Work Complete
Edmonds Lock 25, Overflow Dam and Weir Rehabilitation Highlights
January 29, 2018Community Update: Historic Masonry Progressing Well
December 15, 2017
Community Update: Contractor Mobilizing to Site 
October 31, 2017 - 
Community Update: Phase Two of Work to Begin 
May 26, 2017
Community Update: Phase One of Work Complete 
February 1, 2017 - 
Community Update: Update on Ongoing Work 
December 2, 2016 - 
Community Update: Rehabilitation Work Progressing Well 
September 26, 2016
Community Update: Rehabilitation Work to Begin in September 2016 

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