Lehman Creek Upper dam
Lehman Creek Upper
Lehman Creek Upper is a private water resource located in Custer County, Idaho, with a primary purpose described as "Other." The dam, completed in 1925, is an earth type structure with a core made of stone and foundations of rock and soil. It stands at a height of 22 feet and has a hydraulic height of 19 feet, with a length of 425 feet and a capacity of 54 acre-feet for storage. The dam holds back Lehman Creek, which eventually sinks into the ground.
Despite its low hazard potential, the dam's condition assessment is deemed poor as of the last inspection in 2017. The spillway type is uncontrolled, with an outlet gate described as "Other Controlled." The risk assessment for the dam is rated as moderate, highlighting the need for continuous monitoring and maintenance to mitigate potential risks. Climate and water resource enthusiasts interested in the management and conservation of such structures in remote locations like Lehman Creek Upper in Idaho will find this data intriguing for further analysis and discussions on sustainable water resource practices.
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 Lehman Creek Upper -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Big Lost River Bl Mackay Res Nr Mackay Id | 564 cfs | → |
| Big Lost River At Howell Ranch Nr Chilly Id | 784 cfs | → |
| Nf Big Lost River At Wild Horse Nr Chilly Id | 282 cfs | → |
| Nf Big Wood River Nr Sawtooth Nra Hq Nr Ketchum Id | 135 cfs | → |
| Big Wood River Nr Ketchum Id | 346 cfs | → |
| Little Lost River Bl Wet Creek Nr Howe Id | 119 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lehman Creek Upper.
Campgrounds
- Joseph T. Fallini
- Joe T. Fallini - Mackay Reservoir
- Mackay Reservoir Access Area - Ifg
- Joseph T. Fallini Campground
- Copper Basin Guard Station Rental Cabin
- Mackay Tourist Park
Fishing spots
- Marinac Fishing Access
- Sunbeam Dam
- Perkins Lake
- Alturas Lake And Pettit Lake Areas
- Yellowbelly Lake
- Redfish Lake
Track Lehman Creek Upper 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 Lehman Creek Upper
Where does the data for Lehman Creek Upper 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 Lehman Creek Upper.