Haiwee dam
Haiwee
Haiwee, also known as South Haiwee Reservoir, is a vital water resource located in Inyo, California. This local government-owned dam was completed in 1913 and serves primarily for water supply purposes, including irrigation and domestic use. Situated on the Rose Valley river stream, Haiwee boasts a storage capacity of 60,600 acre-feet and covers a surface area of 1,350 acres.
With a dam height of 81 feet and a hydraulic height of 67 feet, Haiwee poses a high hazard potential but is currently in fair condition as assessed in 2017. The dam is regulated, permitted, inspected, and enforced by the California Department of Water Resources (DWR) and Safety of Dams. Notably, the dam is located in close proximity to the city of Dunmovin and is represented by Congressman Paul Cook (R). Despite its age, Haiwee remains a crucial component of California's water infrastructure, supporting the region's agricultural and residential water needs.
As a key element in the Los Angeles District's water management system, Haiwee plays a critical role in ensuring a stable water supply for the surrounding communities. Its historical significance, coupled with its continued operation and maintenance, highlights the importance of sustainable water resource management in the face of changing climate conditions. Enthusiasts of water resources and climate resilience can appreciate Haiwee as a testament to human ingenuity in harnessing and conserving precious water resources for future generations.
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 Haiwee -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Sf Kern R Nr Onyx Ca | 91 cfs | → |
| Sf Tule R Nr Cholollo Campground Nr Porterville Ca | 16 cfs | → |
| Sf Tule R Nr Reservation Bndry Nr Porterville Ca | 27 cfs | → |
| Deer C Nr Fountain Springs Ca | 16 cfs | → |
| Marble Fork Kaweah R Ab Horse C Nr Lodgepole Ca | 100 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Haiwee.
Campgrounds
- South Fork Kern River
- Fossil Falls
- Kennedy Meadows
- Kennedy Meadows Campground
- Fossil Falls Campgrounds Recreation Site
- Kennedy Meadows General Store
Fishing spots
- Cottonwood Creek Lower Lone Pine
- South Fork Cottonwood Creek
- Muir Lake
- Cottonwood Lakes
- High Lake
- Peppermint Creek
Track Haiwee 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 Haiwee
Where does the data for Haiwee 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 Haiwee.