Cinnamon #1 dam
Cinnamon #1
Cinnamon #1 is a private earth dam located in Wheatland, Montana, along the TR-Musselshell River. Completed in 1972 for irrigation purposes, this dam stands at a height of 15 feet and has a storage capacity of 51 acre-feet. With a low hazard potential and a condition assessment that is not rated, Cinnamon #1 is regulated by the Montana Department of Natural Resources and Conservation (DNRC) and undergoes regular inspections, permitting, and enforcement.
Situated in Congressional District 00 of Montana, Cinnamon #1 is owned privately and is not federally funded or operated. The dam's primary purpose is irrigation, serving the local agricultural community in Shawmut. Despite its age, Cinnamon #1 has not undergone any significant modifications or improvements since its completion, reflecting its stable and well-maintained condition.
For water resource and climate enthusiasts, Cinnamon #1 offers a glimpse into the infrastructure supporting agriculture in Montana. With its location along the TR-Musselshell River and its vital role in providing irrigation water to the surrounding area, this dam serves as a crucial resource for sustaining agricultural activities in Wheatland County. As a state-regulated structure with a low hazard potential, Cinnamon #1 demonstrates the importance of proper maintenance and oversight in ensuring the safety and reliability of water infrastructure 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 Cinnamon #1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Musselshell River At Harlowton Mt | 188 cfs | → |
| Musselshell River Ab Mud Cr Nr Shawmut Mt | 90 cfs | → |
| Musselshell River Nr Martinsdale | 175 cfs | → |
| South Fork Musselshell R Ab Martinsdale Mt | 43 cfs | → |
| Boulder River At Big Timber Mt | 1,370 cfs | → |
| Shields River Nr Livingston Mt | 334 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Cinnamon #1.
Campgrounds
- Chief Joseph City Park
- Deadmans Basin - Fas
- Selkirk Fas
- Jellison Place Campground
- Martinsdale Reservoir Fas
- Haymaker Dispersed Camping Area
Fishing spots
- Big Elk Creek
- Deadmans Basin Reservoir
- Druckmiller Lake
- Crazy Lake
- East Fork Cottonwood Creek
- Big Timber Creek
Paddle runs
Track Cinnamon #1 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 Cinnamon #1
Where does the data for Cinnamon #1 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 Cinnamon #1.