Cascade Orchard Irrigation Company (COIC) Improvement Project

Cascade Orchard Irrigation Company (COIC) Improvement Project

Project Status: Design/Planning

Project Sponsors:

Project Funders: Design/Planning

Project Summary:

COIC has continuously diverted water from Icicle Creek at river mile 4.5 through a shared diversion with the Leavenworth National Fish Hatchery (LNFH) since 1940. The diverted water then travels through a gravity fed canal for approximately 2 miles and through five lateral pipes totaling 14,000 linear feet delivering irrigation water to shareholders throughout the lower Icicle Valley. This project will separate the COIC diversion from LNFH operations and move it downstream to river mile 1.9 (at Shore Street), while also replacing the open canal with a pressurized pump station and pipelines. The result will be an on-demand, highly efficient irrigation system with significant instream flow improvements to Icicle Creek. Low streamflow in Icicle Creek is a chronic problem that is predicted to further decline with climate change effects. This new system will ensure COIC shareholders maintain reliable access to irrigation water while making permanent instream flow improvements to Icicle Creek.

Guiding Principles Met:
Improve Agricultural Reliability Icon
(AGRICULTURE)
Hatchery
(HATCHERY)
Improve Instream Flow Icon
(FLOW)
Enhance Habitat
(HABITAT)
Project Timeline
  1. Construction

Project Contact

Dan Wilkinson

dwroots@gmail.com

509-670-4866

COIC Representative

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