Gauge Description:

Flow in Horseshoe Bend is a combination of spill from Redinger, now posted by Edison as   San Joaquin River Above Willow Creek-Spill and the flow in Willow Creek.   Willow Creek often contributes 100 cfs or so early in the season,  but decreases to almost nothing by summertime. Willow can contribute huge amounts during some big winter rainstorms. Click on the "Show List" button and you can see flows for some other river reaches in the basin as well as reservoir elevations. See also Dreamflows for this flow and many other rivers.

There is a staff gauge behind a rock at the downstream side of the mouth of Willow Creek. The staff measures increments of 500 cfs, up to 5000 cfs.   As of 2010 the staff gauge is reading very high and was a few inches underwater at 4000 cfs.

Horseshoe Bend will occasionally have flows in the winter and early in the Spring from low elevation runoff. It will also receive any spill from Mammoth Pool, which usually occurs if the Snow pack in the basin is 100%. The probability increases as the snow pack rises above 100%. Depending on weather patterns, spill can sometimes occur with less snow pack.

If the SCE links above do not work go to:  http://66.60.143.179/SCEpublic/#  to see if you can track down the correct pages.   Seems like the url of the actual data sometimes changes.

Edison Big Creek Office:  This phone number keeps changing. 

This USGS pdf schematic of the dams, diversions and gauges is helpful for understanding the plumbing system in this basin.
Historical flow information (daily mean flows) can  be found at the following USGS pages.
San Joaquin above Willow Creek, USGS #11242000  
Willow Creek at mouth, USGS #11246500 
Big Creek #4 PowerHouse, USGS #11246530

Willow Creek now has several gauges that measure stage.   These can be handy to corroborate flow info at the Edison gauge; Willow Creek at Mouth.

Willow Creek below Bass Lake
Willow Creek below Manzanita Dam
Willow Creek at Rex Ranch

Gauge Information

Name Range Difficulty Updated Level
San Joaquin At Horseshoe Bend
dream-265 700 - 10000 cfs III-IV(V) 01h55m 60 cfs (too low)

gauge graph
RangeWater LevelDifficultyComment
700 -1600 cfs barely runnable-perfect runnable III-IV(V) gauge is important or has warning Rafts must portage the first big rapid, "Test Rapid" and perhaps others as flows drop.
1600 -5000 cfs med runnable-a bit pushy runnable III-IV(V) gauge is important or has warning Ideal range.
5000 -10000 cfs perfect runnable-high runnable IV-V gauge is important or has warning Hydraulics become increasingly powerful, with huge boils, eddylines and big holes.

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
San Joaquin [CA] Funny Move 6000 cfs n/a
San Joaquin river [CA] San Joaquin proposed reservoir: mile 286 n/a Paul Martzen
San Joaquin [CA] Horseshoe Bend, San Joaquin n/a Paul Martzen
6y115d06h54m @San Joaquin 3. Horseshoe Bend (Redinger Dam to Kerckhoff Reservoir) Avoiding Powerhouse Hole low runnable level Paul Martzen
6y115d06h54m @San Joaquin 3. Horseshoe Bend (Redinger Dam to Kerckhoff Reservoir) Scouting Powerhouse Hole low runnable level Paul Martzen
6y115d08h39m @San Joaquin 3. Horseshoe Bend (Redinger Dam to Kerckhoff Reservoir) Made it! low runnable level Paul Martzen
6y115d08h39m @San Joaquin 3. Horseshoe Bend (Redinger Dam to Kerckhoff Reservoir) Account of 08/21/13 low runnable level Paul Martzen
6y115d08h39m @San Joaquin 3. Horseshoe Bend (Redinger Dam to Kerckhoff Reservoir) Jean Luke entering Constriction low runnable level Paul Martzen
6y115d09h33m @San Joaquin 3. Horseshoe Bend (Redinger Dam to Kerckhoff Reservoir) [CA] Account of 08/21/13 low runnable level Paul Martzen
9y178d03h39m @San Joaquin 3. Horseshoe Bend (Redinger Dam to Kerckhoff Reservoir) [CA] Account of 06/18/10 4100 cfs Paul Martzen
> 10 years @San Joaquin 3. Horseshoe Bend (Redinger Dam to Kerckhoff Reservoir) [CA] Little Dog and kayak 3500 cfs Paul Martzen
> 10 years San Joaquin [CA] Bridge at Kerchoff Reservoir 6000 cfs n/a
> 10 years San Joaquin [CA] 10,000 cfs 10,000 cfs Paul Martzen
> 10 years San Joaquin, Horshoe Bend [CA] Scenic Section 1,600 cfs Paul Martzen
> 10 years San Joaquin [CA] A Beautiful Gorge 2400 cfs n/a