Community Update: Cofferdam to be installed
Rideau Canal National Historic Site
Hogs Back Dam and Fixed Bridge project site map
November 28, 2018 – This week, the contractor for the Hogs Back Dam and Fixed Bridge rehabilitation project will begin installing the cofferdam on the south side of the dam. This work requires the movement of heavy machinery across the multi-use pathway next to the staging area, southeast of the dam. In order to preserve public safety, the contractor will utilize flagstaff to control pedestrian traffic when heavy machinery is crossing. Pedestrians can expect brief intermittent delays during these times.
Work on Hogs Back Dam and Fixed Bridge is being completed in two phases to extend the life of these assets. Phase one will include repairs to the piers and abutments of the dam and bridge, the east and west upstream retaining wall, and to the tunnel under the west abutment of the bridge. Phase two, beginning in spring 2020, will include the replacement of the bridge deck. Substantial completion of the project is expected in 2021.
Parks Canada would like to thank the community for their patience as we complete this important infrastructure project. These historic investments will mitigate health and safety risks, halt the loss of nationally significant built heritage and stimulate the economy in communities across the country.
This project 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. These investments represent the largest federal infrastructure plan in the history of Parks Canada.
About Hogs Back Dam and Fixed Bridge:
Construction of the first dam at Hogs Back began in the late 1820s and was plagued with many challenges. Throughout its construction, the dam was compromised by unexpected high waters and the winter frost impacting its foundation which resulted in its collapse on three separate occasions. Colonel By’s team eventually installed timber cribwork and added a water waste weir to allow excess water to bypass the main dam during high flows. This dam was completed in 1830. Throughout the mid-to-late 1800s the dam sustained significant damage and underwent repairs. A reconstruction effort took place in the early 1890s.
The version of Hogs Back Dam in place today was completed in 1977 along with the fixed bridge. Hogs Back Dam is the currently second highest dam on the Rideau Canal system, following the dam located at Jones Falls.
For More Information:
For up-to-date news about Parks Canada infrastructure work in this area, please visit www.parkscanada.gc.ca/RCInfrastructure. If you have any questions about any of the project, or if you would like to receive email updates, please email us at: RideauCanal.email@example.com and include “Hogs Back” in the subject heading.
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