Mgdevlon Dam dam
Mgdevlon Dam
Mgdevlon Dam, located in Prairie, Montana, is a gravity dam with a structural height of 21 feet and a hydraulic height of 18 feet. Owned and managed by the Bureau of Land Management, this federal dam serves the primary purpose of water resource management for the region. With a storage capacity of 57.3 acre-feet and a drainage area of 3.9 square miles, Mgdevlon Dam plays a crucial role in regulating water flow in the unnamed drainage area it controls.
Despite its low hazard potential, Mgdevlon Dam undergoes regular inspections every five years to ensure its structural integrity and compliance with safety standards. The dam has not been rated for its condition assessment, but given its federal ownership and oversight by the Bureau of Land Management, it is likely well-maintained and safe for continued operation. Situated in a remote location with no associated structures, Mgdevlon Dam is a key component in the water resource infrastructure of the region, contributing to the conservation and management of water resources in Montana.
Water resource and climate enthusiasts will find Mgdevlon Dam an intriguing example of federal dam management in Montana. With its unique design and purpose, this gravity dam showcases the efforts of the Bureau of Land Management in ensuring water security and regulation in the area. The dam's location in a pristine natural setting adds to its appeal, highlighting the importance of sustainable water resource management in maintaining ecological balance and supporting local communities.
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 Mgdevlon Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Yellowstone River At Miles City Mt | 10,600 cfs | → |
| Tongue River At Miles City Mt | 61 cfs | → |
| Redwater River At Circle Mt | 14 cfs | → |
| Powder River Near Locate Mt | 17 cfs | → |
| Nelson Creek Near Van Norman Mt | 0 cfs | → |
| Pumpkin Creek Near Miles City Mt | 0 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mgdevlon Dam.
Track Mgdevlon 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 Mgdevlon Dam
Where does the data for Mgdevlon 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 Mgdevlon Dam.