North Roy dam
North Roy
North Roy is a private water resource located in Fergus County, Montana, with a primary purpose of fire protection, stock, or small fish pond. Completed in 1964, this earth dam stands at a height of 27 feet and has a storage capacity of 415 acre-feet. The dam, situated on Crooked Creek, serves as a crucial source of water for various purposes, including fire protection and agricultural needs.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), North Roy is regulated and inspected by the state, ensuring its safety and compliance with regulations. With a low hazard potential and a condition assessment of "Not Rated," this dam plays a vital role in the local community's water management and conservation efforts. Despite not being rated, North Roy continues to provide essential services and benefits to the area, contributing to sustainable water resource utilization and climate resilience.
As a significant structure in the region, North Roy represents a valuable asset for water resource and climate enthusiasts. With its strategic location and purposeful design, this dam serves as a key component in the water infrastructure of Fergus County, Montana. By providing essential services for fire protection, stock, and small fish ponds, North Roy plays a crucial role in supporting local water needs and enhancing the overall resilience of the community in the face of changing climate conditions.
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 North Roy -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Missouri River Near Landusky Mt | 7,240 cfs | → |
| Musselshell River At Mosby Mt | 80 cfs | → |
| Flatwillow Creek Near Mosby Mt | 18 cfs | → |
| Peoples Creek Near Hays Mt | 2 cfs | → |
| Judith River Nr Mouth | 416 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near North Roy.
Boat launches
- James Kipp Recreation Area
- James Kipp Boat Ramp
- Hideaway Recreation Area
- Homestead - Gus Nelson
- Woodhawk (Middle)
- Woodhawk (Upper)
Campgrounds
- Homestead - Edwin Wartzenluft
- James Kipp Recreation Area
- James Kipp Recreation Area - Umrbnm
- James Kipp
- Homestead - Robert Woods
- Hideaway Recreation Area
Fishing spots
- Jakes Reservoir
- Upper Carters Pond
- Als Coulee Reservoir
- Lower Hansen Reservoir
- Reservoir Number 161
- Mccartney Creek
More reservoirs
Track North Roy 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 North Roy
Where does the data for North Roy 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 North Roy.