Little Montes (Ottosen Reservoir) dam
Little Montes (Ottosen Reservoir)
Little Montes, also known as Ottosen Reservoir, is a private water storage facility located in Uintah, Utah. Managed by the USDA NRCS, this reservoir serves primarily for irrigation purposes and was completed in 1963. With a storage capacity of 95 acre-feet and a normal storage level of 94.67 acre-feet, it plays a crucial role in supporting agricultural activities in the area.
Situated along Montes Hollow, this earth dam structure stands at a hydraulic height of 16 feet and a structural height of 21 feet. Despite being classified as having a low hazard potential, the dam is regulated, inspected, and enforced by the Utah Division of Water Rights to ensure its safety and compliance with state regulations. The last inspection in March 2018 showed no significant concerns, and the reservoir continues to provide vital water resources for the surrounding community.
Located within the jurisdiction of the state of Utah, Ottosen Reservoir is a key asset for water management in the region. With its strategic location and design, this reservoir not only supports irrigation needs but also contributes to the overall water resource management efforts in Uintah County. As climate change impacts water availability, reservoirs like Little Montes play a crucial role in ensuring sustainable water supply for agricultural activities and ecosystems alike.
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 Little Montes (Ottosen Reservoir) -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Uinta River At Randlett | 31 cfs | → |
| Duchesne R Ab Uinta R Near Randlett | 51 cfs | → |
| Duchesne River Near Randlett | 86 cfs | → |
| Duchesne River At Myton | 63 cfs | → |
| Whiterocks River Near Whiterocks | 125 cfs | → |
| Uinta River Blw Powerplant Diversion Nr Neola | 165 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Little Montes (Ottosen Reservoir).
Boat launches
- Upalco Cemetery Road Duchesne County
- Uintah County
- Pelican Lake Boat Ramp
- Seep Ridge Road Uintah County
- Beach Campground
Campgrounds
- Pelican Lake
- Pelican Lake Campground
- Whiterocks Campground
- Dry Fork Campsite 2
- Dry Fork Campsite 1
- Dry Fork Campsite 5
Fishing spots
- Montes Creek Reservoir
- Bullock Draw Reservoir
- Browns Draw Reservoir
- Uinta River
- Lake Fork River
- Brough Reservoir
Track Little Montes (Ottosen Reservoir) 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 Little Montes (Ottosen Reservoir)
Where does the data for Little Montes (Ottosen Reservoir) 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 Little Montes (Ottosen Reservoir).