Felt Coulee Dam dam
Felt Coulee Dam
Located in Petroleum County, Montana, the Felt Coulee Dam, also known as De Stewart #1, is a private irrigation structure designed by USDA NRCS and completed in 1971. The dam is situated on the TR-Box Elder Creek and serves the primary purpose of irrigation. With a dam height of 19.1 feet and a storage capacity of 129 acre-feet, this earth dam plays a crucial role in water management in the region.
Owned privately and regulated by the DNRC, the Felt Coulee Dam has a low hazard potential and is currently rated as 'Not Rated' in terms of condition assessment. The dam's spillway width is 204 feet, with a maximum discharge capacity of 1000 cubic feet per second. Despite not being under the USACE jurisdiction, the Felt Coulee Dam remains an integral part of the local water infrastructure, ensuring the efficient distribution of water for agricultural purposes.
As a significant asset in the irrigation landscape of Montana, the Felt Coulee Dam stands as a testament to the collaboration between private owners and regulatory agencies in maintaining water resources for the benefit of the community. With its strategic location and functional design, this dam continues to play a vital role in supporting agriculture and water management in the region.
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 Felt Coulee Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Musselshell River At Mosby Mt | 80 cfs | → |
| Flatwillow Creek Near Mosby Mt | 18 cfs | → |
| Musselshell River At Musselshell Mt | 90 cfs | → |
| Missouri River Near Landusky Mt | 7,240 cfs | → |
| Musselshell River Near Roundup Mt | 167 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Felt Coulee Dam.
Campgrounds
Fishing spots
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Track Felt Coulee Dam 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 Felt Coulee Dam
Where does the data for Felt Coulee Dam 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 Felt Coulee Dam.