Halfway dam
Halfway
Located in Lodge Grass, Montana, the Halfway dam serves multiple purposes including fire protection, stock watering, and creating a small fish pond. Built in 1956, this earth dam stands at 18 feet tall and has a storage capacity of 137 acre-feet. The dam is owned and regulated by private entities but falls under the jurisdiction of the Montana Department of Natural Resources and Conservation (DNRC).
Halfway dam's hazard potential is rated as low, with its condition assessment currently not rated. While the dam has not been inspected recently, it is designed to meet state regulations and undergoes regular state permitting, inspection, and enforcement processes. The dam's primary source agency is the state of Montana, with no federal involvement in its ownership, funding, design, construction, or operations.
Enthusiasts of water resources and climate will find Halfway dam an interesting structure to study, given its role in providing essential services such as fire protection and stock watering in the Big Horn County area. With its unique location along the TR-Halfway Creek and a rich history dating back to the mid-20th century, the dam offers valuable insights into the management of water resources in rural Montana. As a privately owned and state-regulated facility, Halfway dam exemplifies the collaborative efforts between private landowners and state agencies to ensure the safety and sustainability 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 Halfway -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| East Pass Creek Near Dayton | 12 cfs | → |
| West Pass Creek Near Parkman | 10 cfs | → |
| Little Bighorn River At State Line Nr Wyola Mt | 331 cfs | → |
| Tongue River Near Dayton | 48 cfs | → |
| Rosebud C At Reservation Bndry Nr Kirby Mt | 6 cfs | → |
| Tongue River At Monarch | 383 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Halfway.
Campgrounds
- Connor Battlefield State Park
- Tongue River Camp - Amsden Creek Wma
- Tongue Canyon Campground
- Arrowhead Lodge
- Pine Island Group Campground
- Tongue River Reservoir State Park
Fishing spots
- Tongue River Fishing Site
- Tongue River Fishing East
- Sheridan Fairgrounds Pond
- Tongue River Fishing West
- Bighorn Lake
- Arapooish Pond
Paddle runs
- Wagon Box Creek To Dry Fork Trail
- Bridge At Tongue River Canyon To Burgess Picnic Grounds
- Dry Fork River From Its Confluence With Lake Creek To Confluence With Little Big Horn
- Sf Tongue- Johnson Creek To Confluence With Nf Tongue
- Nf Tongue From Burgess Picnic Ground To Pole Creek
- Fools Gold Crossing (Fdr 480) To Wagon Box Creek
More reservoirs
Track Halfway 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 Halfway
Where does the data for Halfway 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 Halfway.