Camanche Main dam
Camanche Main
Camanche Main is a crucial water resource infrastructure located in San Joaquin, California, along the Mokelumne River. Completed in 1964, this rockfill dam stands at a height of 171 feet and has a storage capacity of 417,000 acre-feet, serving primarily as a water supply source. The dam also fulfills various purposes such as flood risk reduction, hydroelectric power generation, and recreation.
Managed by a public utility and regulated by state agencies like the Department of Water Resources and Safety of Dams, Camanche Main is subject to regular inspections by the Federal Energy Regulatory Commission to ensure its structural integrity and safety. With a spillway width of 400 feet and a high hazard potential, the dam has a moderate risk assessment rating. Despite its age, the dam's condition assessment is currently unavailable, highlighting the need for ongoing monitoring and risk management measures.
Camanche Main plays a vital role in water supply management and environmental conservation efforts in the region, supported by federal and state regulations to ensure its safe operation. As a key component of the water infrastructure in California, the dam's significance extends beyond its primary purpose, making it a critical asset for water resource and climate enthusiasts to monitor and advocate for sustainable water management practices in the face of changing climate conditions.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Camanche Main -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Cosumnes R A Michigan Bar Ca | 271 cfs | → |
| Laguna C Nr Elk Grove Ca | 1 cfs | → |
| Georgiana Slough Nr Sacramento R | 2,990 cfs | → |
| Sacramento R Ab Delta Cross Channel Ca | 2,430 cfs | → |
| Sacramento R Bl Georgiana Slough Ca | 6,310 cfs | → |
| Little Potato Slough A Terminous Ca | 7,590 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Camanche Main .
Boat launches
- Harrington Way 950, Carmichael
- Jedediah Smith Memorial Trail, Gold River
- Watt Avenue, Sacramento
- Glory Hole Road 6503, Angels Camp
- Willow Creek Boat Ramp
Campgrounds
- Rancho Seco Rec Area
- Acorn - New Hogan Lake
- Acorn Campground
- Oak Knoll - New Hogan Lake
- Gold Strike Village Campers
- Indian Grinding Rock Campground
Fishing spots
Paddle runs
Track Camanche Main in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Camanche Main
Where does the data for Camanche Main come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the High hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Camanche Main .