Poore Lake Reservoir dam
Poore Lake Reservoir
Poore Lake Reservoir, located in Mono County, California, is a privately-owned water storage facility with a primary purpose of water supply for irrigation and domestic use. The reservoir was completed in 1900 and has a storage capacity of 1,200 acre-feet, serving as a vital resource for the surrounding area. Poore Lake Reservoir is situated along Poore Creek and covers a surface area of 94 acres, providing a reliable source of water in a region known for its arid climate.
The dam at Poore Lake Reservoir is an earth-fill structure with a height of 23 feet and a hydraulic height of 18 feet. Despite being classified as having a low hazard potential, the dam is regularly inspected and maintained to ensure its structural integrity. The condition assessment conducted in September 2017 deemed the reservoir to be in satisfactory condition, reassuring stakeholders of its safety and reliability. With the State of California regulating its operation and maintenance, Poore Lake Reservoir remains a crucial asset in the management of water resources within the region.
Located in the city of Walker and overseen by the California Department of Water Resources, Poore Lake Reservoir plays a significant role in supporting agricultural activities and meeting the water needs of the local community. With a history that dates back over a century, this reservoir stands as a testament to effective water resource management and highlights the importance of maintaining infrastructure to ensure a sustainable water supply 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 Poore Lake Reservoir -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| W Walker R Blw L Walker R Nr Coleville | 1,260 cfs | → |
| Buckeye C Nr Bridgeport | 192 cfs | → |
| W Walker R Nr Coleville | 1,160 cfs | → |
| Robinson C At Twin Lks Outlet Nr Bridgeport | 124 cfs | → |
| E Walker R Nr Bridgeport | 178 cfs | → |
| Green Creek Near Bridgeport | 60 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Poore Lake Reservoir.
Campgrounds
- Leavitt Meadows
- Leavitt Meadows Campground
- Obsidian
- Obsidian Campground
- Sonora Bridge
- Sonora Bridge Campground
Fishing spots
Paddle runs
- Hoover Wilderness Boundary To Leavitt Meadows Campground
- Headwater Deadman Creek To Confluence With Middle Fork Stanislaus River
- Headwaters Kennedy Creek To Confluence With Middle Fork Stanislaus
- Headwaters To Confluence With East Carsonriver
- Source (Tower Lake) Includes Kirkwood Creek, Cascade Creek And Tower Creek To Hoover Wilderness Boundary
- Relief Reservoir Outlet To Confluence With Clark Fork
Track Poore Lake Reservoir 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 Poore Lake Reservoir
Where does the data for Poore Lake Reservoir 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 Low 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 Poore Lake Reservoir.