Massae dam
Massae
Massae, a privately owned dam located in Uinta, Wyoming, serves the primary purpose of irrigation along the Mill Creek offstream. Constructed in 1968 by designer JOHN A PROFFIT, this earth dam stands at 24 feet high with a hydraulic height of 19 feet, providing a storage capacity of 266 acre-feet. Despite its low hazard potential, the dam's condition assessment is rated as poor, last inspected in July 2019.
With a spillway width of 24 feet and an outlet gate controlled by a single valve, Massae's risk assessment categorizes it as moderate. The dam's overall risk management measures and preparedness for emergencies, such as the creation of an Emergency Action Plan (EAP), remain unspecified. As the dam is regulated by the Wyoming State Engineer's Office and is subject to periodic inspections and enforcement, its role in water resource management in the region is vital.
In the context of the changing climate and increasing pressure on water resources, the maintenance and monitoring of dams like Massae are crucial for ensuring water security and mitigating potential risks. The coordination between private owners, state agencies, and federal representatives, such as Liz Cheney, is essential for the sustainable management of water infrastructure and the protection of communities downstream.
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 Massae -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Bear River Near Utah-Wyoming State Line | 662 cfs | → |
| Blacks Fork Near Millburne | 301 cfs | → |
| Blacks Fork Near Robertson | 354 cfs | → |
| Bear River At Evanston | 345 cfs | → |
| East Fork Of Smiths Fork Near Robertson | 76 cfs | → |
| Weber River Near Oakley | 689 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Massae.
Boat launches
Campgrounds
- East Fork Bear River Campground
- Bear River
- Bear River Campground
- East Fork Bear River
- Hayden Fork Campground
- Hayden Fork
Fishing spots
Track Massae 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 Massae
Where does the data for Massae 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 Massae.