Among the projects proposed under the Columbia River Treaty were construction and operation of 15.5 million acre-feet of Canadian storage and optimization of power generation and flood control downstream in the U.S. & Canada. Construction of the Libby reservoir under the Treaty provisions added another 5 million acre-feet of storage.
Implementation involved development of four treaty projects including Duncan Dam & Duncan Lake, Keenleyside Dam & Arrow Lakes, and Mica Dam & Kinbasket Lake in Canada and Libby Dam & Lake Koocanusa in Montana.
Implementation of the four Treaty Projects included a detailed operating plan for Canadian Storage as well as supplemental agreements:
Detailed Operating Plans for Canadian Treaty Projects:
- Article XIV (2) of the Treaty allows the Entities to prepare the Detailed Operating Plan for the upcoming year.
- Must agree on changes (mutual benefits).
- The DOP includes the process for determining real-time project operations.
- Authorizes the mutually beneficial changes to the DOP for power and non-power purposes.
Typical Supplemental Agreements:
- Provisional Storage
- Nonpower Uses Agreement
- US Flow Augmentation storage
- US Vernita Bar minimum flows
- Canadian Arrow Level Enhancement
- Canadian Trout spawning
- Canadian Whitefish
- Canadian Whitefish Spawning
- Arrow Local Method
Agreement on Libby operations:
- Libby Coordination Agreement
- Libby/Arrow storage swap