Hourly Release Estimates

  • Cu ft/sec
  • Actual flows may vary

JC BoyleFlow estimates below JC Boyle Hydro Project

Table: 5 Days Hourly Avg Flow Rates cu ft/sec
Hour 05/26 05/27 05/28 05/29 05/30
1 2300 2200 1900 1900 2200
2 2300 2200 1900 1900 2200
3 2300 2200 1900 1900 2200
4 2300 2200 1900 1900 2200
5 2300 2200 1900 1900 2200
6 2300 2200 1900 1900 2200
7 2300 2200 1900 1900 2200
8 2200 1900 1900 2200 2200
9 2200 1900 1900 2200 2200
10 2200 1900 1900 2200 2200
11 2200 1900 1900 2200 2200
12 2200 1900 1900 2200 2200
13 2200 1900 1900 2200 2200
14 2200 1900 1900 2200 2200
15 2200 1900 1900 2200 2200
16 2200 1900 1900 2200 2200
17 2200 1900 1900 2200 2200
18 2200 1900 1900 2200 2200
19 2200 1900 1900 2200 2200
20 2200 1900 1900 2200 2200
21 2200 1900 1900 2200 2200
22 2200 1900 1900 2200 2200
23 2200 1900 1900 2200 2200
24 2200 1900 1900 2200 2200

The flow release schedule for the J.C. Boyle Powerhouse is a good faith estimate and not a guarantee that any releases will occur as or when estimated. Operational considerations, mechanical failure, human error or system safety concerns could require changes to this schedule with little or no notice. PacifiCorp provides this information as a courtesy for recreational users of the river and makes no warranty of its accuracy or fitness for any particular purpose.

These flow estimates now include an additional 150-300 cfs of base flow occurs in the JC Boyle bypass reach between the dam and the put-in. It is recommended that all boating parties check the BLM staff gage at the put-in to verify actual flow.

The values listed above are in average cubic feet per second for the 60 minute period beginning with the hour indicated in the above table. Actual flows will vary over the hour when the project is ramping flows up and down.