Bow River Basin – TransAlta operations

The province works with TransAlta to protect communities along the Bow River from flooding and drought.

TransAlta agreement

In the spring of 2021, the Alberta government extended its Modified Operations Agreement with TransAlta for another 5-year term. The agreement allows the government to modify operations at several TransAlta facilities to help protect communities along the Bow River against the impacts of both floods and drought.

Government is committed to ensuring our province is prepared for the potential of future flooding and drought. Leveraging existing TransAlta infrastructure is an effective option to help protect communities along the Bow River.

Terms of the agreement

  • Compensation paid to TransAlta is $5.5 million per year.
  • Five-year agreement beginning April 1, 2021.
  • Modified operations period at Ghost Reservoir is from May 16 to July 7, primarily for flood mitigation purposes.
  • Year-round modified operations at Barrier Lake, Upper Kananaskis Lake and Lower Kananaskis Lake, primarily for drought mitigation purposes.


For information about the modified operations agreement with TransAlta, contact the Information Centre:

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