Nollmeyer #1 dam
Nollmeyer #1
Nollmeyer #1 is a private earth dam located in Wilsall, Montana, along the TR-Elk Creek. Built in 1975, the dam serves multiple purposes, including fire protection, stock, and small fish pond management. With a height of 25 feet and a storage capacity of 86 acre-feet, Nollmeyer #1 has a low hazard potential and is regulated by the Montana Department of Natural Resources and Conservation (DNRC). The dam has not been rated for its current condition and does not have an Emergency Action Plan (EAP) in place.
Despite its relatively small size, Nollmeyer #1 plays a crucial role in water resource management in the region. Its location in Park County, Montana, makes it an important asset for maintaining water supply for various uses, especially in times of fire emergencies. The dam's presence also contributes to the overall ecosystem health of TR-Elk Creek and supports the local wildlife population. As a privately owned structure, Nollmeyer #1 is subject to state jurisdiction and regulation, ensuring its safe operation and maintenance.
Water resource and climate enthusiasts will appreciate the significance of Nollmeyer #1 as a key infrastructure for water management in Montana. Its construction and purpose reflect the importance of sustainable water practices and the need for effective dam regulation and inspection. As part of the larger network of dams in the area, Nollmeyer #1 highlights the interconnectedness of water resources, climate resilience, and environmental stewardship in maintaining a balanced ecosystem for both human and wildlife 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 Nollmeyer #1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Shields River Nr Livingston Mt | 259 cfs | → |
| South Fork Musselshell R Ab Martinsdale Mt | 43 cfs | → |
| Yellowstone River Near Livingston Mt | 6,420 cfs | → |
| Musselshell River Nr Martinsdale | 161 cfs | → |
| Boulder River At Big Timber Mt | 795 cfs | → |
| Missouri River At Toston Mt | 5,170 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Nollmeyer #1.
Campgrounds
- Porcupine Cabin
- Ibex Cabin
- Crandall Creek Cabin
- Shields River Dispersed Site
- Halfmoon Campground
- Battle Ridge
Fishing spots
Paddle runs
- Gallatin Forest Boundary, Sec. 26, T3s, R12e To Blakley Creek, Sec. 26, T3s, R12e
- Blakley Creek, Sec. 26, T4s, R12e To Miller Creek, Sec 13, T4s, R21e
- Miller Creek, Sec. 13, T4s, R21e To Bramble Creek, Sec. 26, T5s, R12e
- Bible Run
- Bramble Creek, Sec. 26, T5s, R12e To Absaroka-Beartooth Wilderness, Sec. 22, T7s, R12e
- Madison River
More reservoirs
Track Nollmeyer #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 Nollmeyer #1
Where does the data for Nollmeyer #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 Nollmeyer #1.