Double Crossing Detention Dam dam
Double Crossing Detention Dam
Double Crossing Detention Dam, located in Valley County, Montana, serves as a crucial flood risk reduction structure along the Willow Creek/Milk River. Constructed in 1962 by the Bureau of Land Management, this gravity dam stands at a height of 19 feet and has a hydraulic height of 14 feet, with a storage capacity of 323.1 acre-feet. Despite its low hazard potential, the dam's condition assessment is currently marked as unsatisfactory, emphasizing the need for regular maintenance and inspection to ensure its safety and effectiveness.
Managed by the Bureau of Land Management, Double Crossing Detention Dam plays a vital role in protecting the surrounding area from potential flooding events. With a surface area of 59.26 acres and a drainage area of 6.4 square miles, the dam provides essential flood control measures to safeguard nearby communities and agricultural land. Although the dam's spillway type is uncontrolled, efforts have been made to mitigate risks and ensure the overall safety of the structure.
As climate change continues to impact water resources and increase the frequency of extreme weather events, the importance of maintaining and monitoring dams like Double Crossing Detention Dam becomes increasingly evident. With an updated inspection frequency of every 5 years and a moderate risk assessment rating, it is essential for stakeholders to prioritize the ongoing safety and functionality of this critical flood risk reduction infrastructure in order to protect both people and property 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 Double Crossing Detention Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Milk River At Tampico Mt | 52 cfs | → |
| Beaver Creek Near Hinsdale Mt | 35 cfs | → |
| Milk River At Nashua Mt | 109 cfs | → |
| Beaver Cr Bl Guston Coulee Nr Saco Mt | 67 cfs | → |
| Milk River At Juneberg Bridge Nr Saco Mt | 182 cfs | → |
| Milk River At Malta Mt | 56 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Double Crossing Detention Dam.
Track Double Crossing Detention 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 Double Crossing Detention Dam
Where does the data for Double Crossing Detention 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 Double Crossing Detention Dam.