North Umpqua River flows
The flows represented by this gage station are in the North Umpqua River's Wild and Scenic Reach downstream of the North Umpqua Hydroelectric Project and Boulder Creek (a wilderness stream).
Real-Time flow data for this site is available from gage station 14316500 funded by PacifiCorp and managed by the USGS.
Forecasted flows for a nearby tributary, Steamboat Creek, are provided by NOAA's Northwest River Forecast Center.
Tentative 2023 schedule of planned waterway maintenance which may affect flow in bypass reaches or trigger fish salvage activity at the North Umpqua Hydroelectric Project. Maintenance has been planned to occur during the Settlement Agreement preferred periods to the greatest extent possible. Dates are tentative and can change without notice due to weather, equipment, personnel, construction and maintenance progress, and other issues. The dates listed are the approximate date of canal or powerhouse shutdown, but ramping and flow changes may impact adjacent days as well. During some outages it may be possible to keep “fish flow” in the waterway, which means sufficient flow to keep fish alive, generally 2-20 cfs depending on the waterway, season, and weather. Note also that high natural flows and unplanned shutdowns for emergency responses and brief maintenance events may occur at any time without advance notice. For details contact Rich Grost, PacifiCorp, 541-498-2617. Version 3; 5-2-23.
Waterway |
Approximate dates of shutdown |
Bypass reach flow affected? |
Date of fish salvage |
Fish liberated to |
Notes |
|---|---|---|---|---|---|
Lemolo 1 GSU |
5/1 – 5/5 |
yes |
na |
na |
Fish flow retained in canal |
Lemolo 1 canal+ |
5/5 – 6/1 |
yes |
5/9 |
Lemolo Lake |
Canal dewatered from 5/9 thru duration of outage |
Lemolo 2 |
none |
|
|
|
|
Clearwater 1 |
4/3 – 4/20 |
yes |
4/3–4 |
Clearwater 1 forebay |
Canal dewatered |
Clearwater 2 |
none |
|
|
|
|
Toketee (individual turbines) |
1/9 – 1/27 7/1 – 12/31 |
If inflows exceed 900 cfs |
na |
na |
Fish screen precludes most fish from unsalvageable tunnel, tunnel drains to river |
Toketee (all three turbines) |
6/12 – 6/18 and 11/1 – 12/31 |
yes |
na |
na |
Fish screen precludes most fish from unsalvageable tunnel, tunnel drains to river |
Fish Creek |
When natural inflow <130 cfs (~July-Oct) |
no |
na |
na |
Fish screen precludes fish from canal, diversion generally shut down in summer and fall |
Slide Creek |
3/6 – 3/23 |
yes |
3/6–7 |
Toketee Lake (Lemolo Lake if time allows) |
Canal dewatered |
Soda Springs |
2/6 – 2/23 |
yes |
na |
na |
Fish screen precludes fish, penstock drains to river |
Soda Springs fish screen |
8/7 – 8/31 |
no |
8/8–9 |
adjacent waters (brown trout to Lemolo Lake if time allows) |
Dewater fish screen and supply AWS and downstream passage via spillway and/or log chute, powerhouse flow via north intake |