Canada’s newest dam!

On Monday December 10th, 2017 Parks Canada inspected and commissioned the newly constructed dam at the outflow of Mississagua Lake in the Township of Trent Lakes. The new dam is located immediately downstream from the old dam that had been in service since the 1930s. Parks Canada salutes the old dam for its more than 80 years of service to the Trent-Severn Waterway system and to the communities in the Mississagua Lake area. Work is now underway to remove the old dam.

For more information about this project or about any of the more than $600 million in infrastructure investments along the Trent-Severn Waterway please consult parkscanada.gc.ca/tswInfrastructure or email us at Ont.TrentSevern@pc.gc.ca
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Mississagua Lake Dam Update

Note this very neat piece of information from the below update:

Parks Canada has been contacted by numerous residents looking to secure keepsakes of the old dam. One of the old dam signs, with the engraved initials of many visitors and area residents, will be donated to the township’s heritage preservation committee. Additionally, pieces of the old dam will be placed in a bucket at the entrance gate of the construction site should area residents wish to have their own tangible piece of history. Unfortunately, the logs of the old dam are not available for cottagers or residents as Parks Canada will be repurposing these logs for use at other sites or for other operational requirements.

December 7, 2017 – Work toward the completion of the Mississagua Lake Dam continues with several important milestones on the immediate horizon.

The work that began in November to chip out and reform the sills and rollways of the new dam is now complete. This work was undertaken to correct for a discrepancy in the elevation of the new dam and to achieve the desired water management capacity for this location.

Weather permitting, the contractor could pour the concrete of the sills and rollways as early as December 7th. This should be the final pour of concrete required for the construction of the new Mississagua Lake dam.

With the work on the sills and rollways complete, the new Mississagua Lake dam could be commissioned as early as Monday December 11th, 2017. This process will involve an inspection and then the placement of the logs into the spillway gains of the new dam. Logs from the old dam will then be removed and the new dam will enter into service.

Demolition of the old dam will begin shortly after the new dam enters into service and will have a phased approach. The contractor will make use of barge mounted heavy equipment in order to chip the concrete down to the level of the sill. The work will begin by removing the westerly portion of the old dam, followed by the removal of the temporary coffer dams, and then finally removing the easterly portion of the old dam.

Parks Canada has been contacted by numerous residents looking to secure keepsakes of the old dam. One of the old dam signs, with the engraved initials of many visitors and area residents, will be donated to the township’s heritage preservation committee. Additionally, pieces of the old dam will be placed in a bucket at the entrance gate of the construction site should area residents wish to have their own tangible piece of history. Unfortunately, the logs of the old dam are not available for cottagers or residents as Parks Canada will be repurposing these logs for use at other sites or for other operational requirements.

Parks Canada thanks residents for their continued interest and patience as we complete the project to replace the Mississagua Lake dam.

Background
The current dam at Mississagua Lake dates to approximately 1930 and replaced a timber crib dam that had been previously built in the area. Remnants of this timber crib dam can still be seen in the water upstream of the dam site. While numerous repairs have been made on the dam over the years, there have not been any major rehabilitations since the original construction.

The replacement of the Mississagua Lake Dam is part of Parks Canada’s unprecedented $3 billion dollar investment over 5 years to support infrastructure work to heritage, visitor, waterway and highway assets located within national historic sites, national parks, and national marine conservation areas across Canada.

For More Information:

For up-to-date news on infrastructure work along the Trent Severn Waterway, please visit our website: www.parkscanada.gc.ca/tswInfrastructure. If you have questions about the project to replace the Mississagua Lake Dam or if you would like to be added to our community engagement list and receive updates on this project, please contact us at: ont.trentsevern@pc.gc.ca and include Mississagua Lake Dam in the subject heading.
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Here is a copy of the presentation from Parks on Saturday (update on Horseshoe Lake Dam and Mississagua Dam). ... See MoreSee Less

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