2026 Water Supply

The Roza Irrigation District is actively planning for the 2026 irrigation season water supply.

Our team is currently working with the Roza Board of Directors on how best to manage the irrigation season.

The plan can change as conditions change.  Please continue to visit our 2026 Drought Website for the most up to date information.

Roza-Restart Update

Roza Water Users- We are examined re-programming this aspect, but it is not a quick task. Roza’s water ordering software…

Roza re-start schedule (You will need to re-order water!)

Roza Water Users- The re-start process is somewhat more labor intensive than shutting the system down, and it takes a…

Miscellaneous Roza drought & fish info

Roza Water Users- Water that is used for flushing pulses or to aid up migrating adult salmon during low flow…

Reservoir Drainage Basin map

Reservoir Drainage Basin Map 2026

2021 Roza Crop Census

Roza drought year water supply facts & FAQ

Roza-Drought-Year-Water-Supply-Facts-FAQDownload

2015 Drought and Agriculture – A Study by the Washington State Department of Agriculture

2015-WSDAg-Drought-Economic-Impact-ReportDownload

Proration schedule

Proration Schedule

Calculating Days to run at Current Flow Rate

Calculating-Days-to-run-at-Current-Flow-RateDownload

Yakima Basin Drought Summary