Anderson Reservoir dam
Anderson Reservoir
Anderson Reservoir, located in Dodson, Montana, is a private water resource managed by the Montana Department of Natural Resources and Conservation. Built in 1939, this earth dam stands at a height of 28 feet and serves primarily for fire protection, stock, and small fish pond purposes. With a storage capacity of 217 acre-feet, the reservoir is fed by Peoples Creek and covers a surface area ideal for its intended functions.
Despite being a low hazard potential structure with a condition assessment of 'Not Rated', Anderson Reservoir plays a crucial role in providing essential water resources for fire protection and livestock in the region. Its location in Blaine County, Montana, under the jurisdiction of DNRC, ensures regular inspections, permitting, and enforcement, guaranteeing the safety and efficiency of the dam. Water and climate enthusiasts will be fascinated by the historical significance and practical utility of this reservoir in sustaining local ecosystems and agricultural activities.
As part of the Omaha District of the US Army Corps of Engineers, Anderson Reservoir contributes to the overall water management infrastructure in the region. With a maximum storage capacity of 217 acre-feet and a normal storage level of 111 acre-feet, the reservoir remains a vital resource for the community. Climate enthusiasts will appreciate the role of this structure in maintaining water supply stability and supporting environmental conservation efforts in the area.
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 Anderson Reservoir -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Peoples Creek Near Hays Mt | 2 cfs | → |
| Milk River Near Harlem Mt | 385 cfs | → |
| Battle Creek Near Chinook Mt | 1 cfs | → |
| Clear Creek Near Chinook Mt | 6 cfs | → |
| Milk River Near Dodson Mt | 16 cfs | → |
| Milk River At Havre Mt | 804 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Anderson Reservoir.
Track Anderson Reservoir 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 Anderson Reservoir
Where does the data for Anderson Reservoir 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 Anderson Reservoir.