Thav dam
Thav
Thav is a privately owned earth dam located in Montana near the city of Vaughn, specifically on TR-Muddy Creek in Teton County. Built in 1940, the dam stands at a height of 15 feet and serves multiple purposes including fire protection, stock watering, and as a small fish pond. With a storage capacity of 67 acre-feet, Thav plays a crucial role in managing water resources in the region.
Despite its low hazard potential, Thav is regulated and inspected by the Montana Department of Natural Resources and Conservation (DNRC) to ensure its safety and compliance with state regulations. The dam has not been rated for its condition assessment, but it continues to serve its intended purposes effectively. While there are no specific risk management measures or emergency action plans in place for Thav, its presence contributes to the overall water management and climate resilience efforts in the area.
As a key infrastructure for water resource management, Thav provides a valuable resource for fire protection, livestock, and wildlife in the region. Its location within a congressional district in Montana highlights its importance in the local ecosystem and community. With its historical significance and ongoing operational role, Thav stands as a testament to the enduring importance of water resources and climate adaptation in the face of changing environmental 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 Thav -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Teton River Near Dutton Mt | 83 cfs | → |
| Lake Creek Near Power Mt | 30 cfs | → |
| Muddy Creek At Vaughn Mt | 87 cfs | → |
| Sun River At Simms Mt | 1,030 cfs | → |
| Sun River Near Vaughn Mt | 1,120 cfs | → |
| Missouri River Near Ulm Mt | 4,040 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Thav.
Campgrounds
Fishing spots
Paddle runs
- Headwaters, Sec. 13, T18n, R10w To Forest Boundary, Sec. 6, T17n, R7w
- Tenderfoot Creek, Sec. 30, T14n, R4e To Deep Creek, Sec. 31, T16n, R4e
- Headwaters, Sec. 4, T18n, R10w To North Fork Sun River, Sec. 26, T22n, R10w
- Wilderness Boundary To South Fork Sun River, Sec. 26, T22n, R10w
- Fool Creek, Sec. 24, T25n, R11w To Wilderness Boundary
Track Thav 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 Thav
Where does the data for Thav 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 Thav.