Idaho Cobalt Wmp dam
Idaho Cobalt Wmp
The Idaho Cobalt Wmp, also known as the Jervois H20 Management Pond, is a private water management facility located in Lemhi County, Idaho. This dam was completed in 2019 and serves as a crucial resource for water storage and management in the area. The dam is primarily used for purposes other than flood control or hydroelectric power generation, with a low hazard potential and a moderate risk assessment rating.
With a dam height of 21 feet and a normal storage capacity of 91 acre-feet, the Idaho Cobalt Wmp plays a vital role in the local water infrastructure. The dam is constructed from earth and stone materials, with rock and soil foundations supporting its structure. Despite its low hazard potential, the dam is subject to regular state inspections and enforcement to ensure its continued safety and functionality.
Located near Little Deer Creek and Panther Creek, the Idaho Cobalt Wmp is a key component of water resource management in the region. With its moderate risk assessment and state-regulated status, this dam represents a critical piece of infrastructure for ensuring water availability and security in Lemhi County, Idaho.
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 Idaho Cobalt Wmp -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Blackbird Creek Near Cobalt | 12 cfs | → |
| Napias Creek Below Arnett Creek Near Leesburg | 63 cfs | → |
| Salmon River Nr Shoup Id | 4,050 cfs | → |
| Middle Fork Salmon River At Mouth Nr Shoup Id | 7,090 cfs | → |
| Salmon River At Salmon Id | 3,040 cfs | → |
| Lemhi River Below L5 Diversion Near Salmon | 42 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Idaho Cobalt Wmp.
Boat launches
- Cove Creek Boating Site
- Salmon River Road Lemhi County
- Cache Bar Boat Ramp
- National Forest Development Road 028 Lemhi County
Campgrounds
- Mcdonald Flat Campground
- Mcdonald Flat
- Crags Complex
- Bighorn Crags Campground
- Yellowjacket Lake
- Yellowjacket Lake Campground
Track Idaho Cobalt Wmp 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 Idaho Cobalt Wmp
Where does the data for Idaho Cobalt Wmp 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 Idaho Cobalt Wmp.