Gauge Description:

The river can be paddled from approximately 300-800 cfs. At the lower limit of flows the run is a technical creek and at the higher limit of flows some of the holes can pack a punch. While there is no gauge on the Cooper you can estimate flow in a couple ways. First, the Cooper is a tributary of the Cle Elum. Discharge of the Cle Elum upstream of the reservoir is calculated from change in reservoir height and release from the reservoir. The value can be found on the USBR Yakima Project site as reservoir inflow for the Cle Elum (keep in mind this is a caculated value and sometimes the numbers are a bit off). Looks for flows of about 800 to 1200 cfs although lower or higher flows are possible. To see data from the last few days go to the data archive, select station CLE with parameter QU which is the calculated inflow. For a second check, the Teanaway River at Forks is maintained by USBR and is the next drainage to the east which can give you an indication of flows in the area. Look for flows around 70 cfs on this gauge after the spring snowmelt. At higher flows this run is class V and more continuous. At lower flows it becomes mostly IV+ with a couple of drops in the V- range.

Gauge Information

Name Range Difficulty Updated Level
Cle Elum Inflow Cle Elum Lake
dream-557 700 - 1650 cfs IV-V 9d00h26m 490 cfs (too low)

gauge graph
RangeWater LevelDifficultyComment
700 -1650 cfs barely runnable-high runnable IV-V gauge is important or has warning

Reports give the public a chance to report on river conditions throughout the country as well as log the history of a river.

When River/Gauge Subject Level Reporter
Cooper River [Wa] n/a Beri Gorsuch
Cooper River [WA] Blake high chris fee
Cooper River [Wa] nice boof! n/a chris fee
Cooper [WA] Ledge Drop n/a Thomas O'Keefe
Cooper River [WA] Cooper River put-in n/a Thomas O'Keefe
> 10 years Cooper [WA] First Slide med-low Thomas O'Keefe
> 10 years Cooper River [WA] West coast meeting of the Friday Afternoon Paddle Club low, 150 cfs ? John Alden
> 10 years Cooper River [WA] Jerry heading into Norm's Resort low, 150 cfs ? John Alden
> 10 years Cooper River [WA] Wall of Voodoo n/a Thomas O'Keefe
> 10 years Cooper [WA] S Turn (center line) med-low Thomas O'Keefe
> 10 years Cooper [WA] Wall of Voodoo med-low Thomas O'Keefe
> 10 years Cooper [WA] Shark's Tooth n/a Thomas O'Keefe
> 10 years Cooper [WA] Wall of Voodoo n/a Thomas O'Keefe