Welcome to Columbia Irrigation

Columbia Irrigation District’s office is open Monday – Friday from 7:30 am – 4:00 pm. The office phone number is (509) 586-6118. During water season the District is available for emergencies 24 hours a day by calling (509) 586-6118.

The system begins at Wanawish Dam where water is diverted from the Yakima River into the main canal.
The CID system consists primarily of open canals, both lined and unlined, which total approximately 41 miles in length.  Some CID lateral pipelines, mostly gravity flow, also exist to distribute water from the canals.  The CID operates and maintains 50 Local Improvement Districts (LIDs) which provide  irrigation water to each individual parcel.


Office will be closed…
November 26th and 27th
December 23rd-25th
January 1st


Winterize Your Irrigation Riser – Homeowners can prevent the CID valve and riser in their yard from freezing which in turn will help keep maintenance costs down and prevent a leaky or broken valve next spring. Complete the following steps to winterize your CID irrigation riser:

  1. Ensure that the water delivery to your home has ended for the season.
  2. Locate the CID riser for your lot. Homeowners will have either an above ground or an underground riser.
  3. Drain the CID riser and valve. This can be done by disconnecting hoses and/or the irrigation system from the CID riser, and opening the gate valve. If it is not possible to disconnect the irrigation system from the riser, you will need to open all sprinkler valves and then let gravity empty the system. Drain times will vary from home to home so please be patient and wait for the water to stop flowing out of the riser.
  4. Once the water flow has stopped, winterize your personal irrigation system. Consult with a professional to determine the proper winterization procedure for your irrigation system. Warning: personal injury and/or property loss can and will occur if winterization is done improperly or incompletely!
  5. After your system has been professionally drained, fully open and close the CID gate valve several times to ensure that water is not trapped inside the valve or riser.
  6. Repeat steps 3, 4 and 5 until both your sprinkler system and the CID riser are completely free of water.
  7. Finally, close the CID gate valve and leave it closed. If the irrigation system was disconnected from the riser, do not reconnect it until spring startup.

Tips to think about before calling the District if you think you are having a problem:

No water Check your valve – make sure it is open. (all the way)
Low pressure If you’re using a hose – make sure it is not plugged
  Clean your filter