Dewey dam
Dewey
Dewey, located in Sheridan, Montana, is a private water resource managed by the USDA NRCS with a primary purpose of fire protection, stock, or small fish pond. This 1948 Earth type dam stands at a height of 25 feet and has a storage capacity of 82 acre-feet, with a normal storage level of 49 acre-feet. The dam is regulated by the Montana Department of Natural Resources and Conservation, with state permitting, inspection, and enforcement in place to ensure its safe operation.
Situated in Congressional District 00 of Montana, Dewey serves as a vital resource for the community of Reserve, providing water for various purposes such as fire protection and livestock management. With a low hazard potential and a condition assessment of "Not Rated," Dewey highlights the importance of proper infrastructure maintenance and management in ensuring the sustainability of water resources in the face of climate change. As a diffused surface water source, Dewey plays a crucial role in supporting local ecosystems and enhancing overall water security in the region.
With a history dating back to 1948, Dewey continues to be a significant asset for water management in Montana, showcasing the collaboration between private ownership and government agencies in safeguarding water resources. As climate enthusiasts and water resource advocates, understanding the importance of structures like Dewey is essential in promoting sustainable water management practices and adapting to changing environmental conditions. The presence of regulatory oversight, coupled with a focus on risk assessment and emergency preparedness, underscores the commitment to maintaining the integrity and functionality of Dewey for future generations.
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 Dewey -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Big Muddy Creek Near Antelope Mt | 11 cfs | → |
| Big Muddy Cr Nr Mouth Nr Culbertson Mt | 11 cfs | → |
| Missouri River Near Culbertson Mt | 5,080 cfs | → |
| Poplar River Near Poplar Mt | 36 cfs | → |
| Little Muddy River Bl Cow Creek Nr Williston | 17 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Dewey.
Track Dewey 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 Dewey
Where does the data for Dewey 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 Dewey.