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Sault Ste. Marie Headrace Canal Conveyance Capacity Modelling



Contributors
Jacob Bruxer;
Abstract
The maximum conveyance capacity of the Soo hydropower plant headrace canals under low water conditions was investigated using hydraulic models. At extremely low Lake Superior water levels, the assumed discharge capacity of the hydropower plants may exceed the capacity of their headrace canals, and as such, the amount of flow that can be passed through the plants may be limited and may be inconsistent with the amount required by the Lake Superior regulation plan. HEC-RAS models of the Brookfield, Cloverland and U.S. Government hydropower canals were developed and calibrated to available data. Relationships for maximum flow as a function of Southwest Pier water level were developed and verified using hourly and daily flow data, and incorporated into the Shared Vision Model used to evaluate regulation plans. The relationships reflect the maximum flow the channel could possibly convey for a given water level, but do not account for additional restrictions or limitations that may exist.
Reports:
Soo Side-Channel Headrace Conveyance Capacity Modelling
Additional Data and Information

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Supporting Content (Show)
Main Topics
Lake Superior Regulation
Questions We Asked
Does the plan benefit hydropower?
Key Findings
Plan 2012 will be more robust and provide important benefits compared to Plan 77A
Plan 2012 provides overall economic improvements
View all 3 key findings
Plan 2012 flow changes will be smaller, benefiting hydropower
Tasks
Hydropower Evaluation
Hydrodynamic Modelling