River Levels

We spend a lot of time on rivers and frequently keep an eye on water levels. An extremely dry summer strained all Central Oregon waterways and in September the BLM drew down the Crooked River . . .  dramatically.

Rivers are measured at regularly intervals along their run. It’s all part of water management. The numbers you see are stream stage (gage height in feet), which are water level, but also a measure of flow volume stated as Cubic Feet per Second (CFS). These numbers project potential water available to downstream irrigators, but also allow users to see seasonal changes to a stream.

Late summer flows on the Crooked can drop to 50 CFS from an average of about 130 CFS. September’s BLM draw down was to 10 CFS. This put more water in the irrigation ditches, but caused concern for the fish population.

In fact, they closed the river to fishing for a couple of months. As a result, we began our John Day River excursions and subsequently discovered Small Mouth Bass fishing.

We haven’t been on the Crooked River since the closure, not just because you couldn’t fish, but we dreaded how dramatic the impact might be. This week we braced ourselves and drove to the Crooked to have a look.

The day we were there, the river was up a bit, at 23 CFS. As expected a lot of river bed was exposed. The Crooked River has never been easy to wade, but now I’ve got a better understanding of why. With so much bottom laid bare, white alkali deposits on rocks mark high water points, and from the remaining water flow to the bank was an exposed jumble of loose shoebox sized stones.

What water was still there snaked between boulders offering only a few deep pools in which fish could hold. A climate disaster observed up close.

This week the levels are coming back up (2.03 ft/48 CFS at this writing), so now we find out how much impact the reduced flow has had.

In a week or two we’ll be back on stream to wet a line and hope the winter snows are deep.