Flood Info
Flood Emergencies

Flooding can happen at anytime, know who to call!

Within Nampa & Meridian Irrigation District
Regular Business Hours:
(208) 466-7861
After Hours:
(208) 489-6345
Within Nampa City Limits
(208) 468-5860

Water OFF
Water will be turned
OFF starting
OCTOBER 06, 2025
Ridenbaugh
Ridenbaugh Headworks Project

NMID is modernizing the Ridenbaugh Canal headworks to improve worker and public safety, increase efficiency, reduce operational water loss, increase flexibility to changing Boise River flows.

Canal Safety
Canal Safety is No Joke!

Canals carry cold, fast-running water, and the water levels are always changing, creating unsafe conditions. Educate your children and keep them and your pets safe.

Water Orders
New Water Orders

The Nampa & Meridian Irrigation District has changed to a new automated water ordering and messaging system.

Billing and Taxes
Billing & Taxes

You can now make a payment online!

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A Vital Part of the History of Canyon and Ada Counties

Nampa & Meridian Irrigation District was formed in 1904 to bring water to Idaho farmers developing the lands of Canyon and Ada Counties by creating a system of canals and storage reservoirs.  Some of our water rights from the Boise River date from the late 1800’s.  We also have storage rights that date from the early to mid 1900’s in the Arrowrock and Anderson Reservoirs.  For over a century, Nampa & Meridian Irrigation District has played a crucial role in the economy of the Treasure Valley

Canal Safety