East Columbia Basin Irrigation District
Providing the East Columbia Basin with reliable irrigation water at a sustainable cost for landowners
2026 Irrigation Season Start Dates Announced
March 23rd: Deliveries to Block 49 Begin
March 24th: East Low Canal filling begins
March 30th: Deliveries from East Low Canal begin
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Learn More Canals
86 Miles
Laterals
534 Miles
Drains
917 Miles
Pumping Plants
53
Pumping Units
100
BY THE NUMBERS
The East Columbia Basin Irrigation District is the largest district in the state of Washington, with authorization to irrigate 472,000 acres. Currently, 169,000 acres are developed. We provide a reliable supply of water that irrigates the cropland that produces food shipped domestically and internationally.
4500 Landowners served.
89 Varieties of crops grown.
84% of assessed acres are under Sprinkler Irrigation.
Economic Value of Irrigated Crops (as of 2021) $304.7M
East Low design capacity is 4,500 cfs.