Project Profiles

Dam Rehabilitation

The Moose Mountain Dam was rehabilitated by Tri-Core Projects for the first time since it was constructed in 1937. The work comprised an overhaul of the entire dam structure which included selective demolition, excavation, erosion control and construction of new fish habitat features. Tri-Core developed and implemented a site-specific environmental management plan for this project to protect the aquatic life in the Souris River while facilitating the required improvements to the existing structure.

The scope of work included:

  • Removal and disposal of existing weir, embankment materials and channel sediment;
  • Installation sheet piling and log boom anchors and assemblies;
  • To mitigate river bank erosion during construction, downstream silt fences were used to capture sediment;
  • Rehabilitation of the fish habitat feature incorporated technology not originally available in 1937 and involved the use of geosynthetic materials with the filter material and rip rap placement.