Upper Little Nemaha 50 dam
Upper Little Nemaha 50
Located in Otoe County, Nebraska, the Upper Little Nemaha 50 dam serves as a critical infrastructure for flood risk reduction along the Wolf Creek. Constructed in 2001, this earth dam stands at a height of 43 feet and has a structural height of 49 feet, providing a vital line of defense against potential flooding in the region. With a normal storage capacity of 173 acre-feet and a maximum storage of 490 acre-feet, this dam plays a crucial role in protecting the surrounding area from potential water-related disasters.
Managed by the local government and regulated by the Nebraska Department of Natural Resources, the Upper Little Nemaha 50 dam has been assessed as having a low hazard potential and satisfactory condition. With a drainage area of 3.7 square miles and a maximum discharge capacity of 1491 cubic feet per second, this dam is equipped to handle significant water flow during heavy rainfall events. Regular inspections and maintenance ensure that the dam remains in optimal operating condition, providing peace of mind to the community and stakeholders who rely on its flood protection capabilities.
Congressional District 01 in Nebraska, represented by Jeff Fortenberry, oversees the management and maintenance of the Upper Little Nemaha 50 dam. With a history of successful flood risk reduction and a track record of satisfactory performance, this crucial infrastructure continues to play a vital role in safeguarding the local area from the impacts of water-related disasters. As water resource and climate enthusiasts, the Upper Little Nemaha 50 dam serves as an example of effective infrastructure management and proactive flood risk mitigation in the face of changing environmental conditions.
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 Upper Little Nemaha 50 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Salt Creek At Greenwood | 379 cfs | → |
| Stevens Creek Nr. Lincoln | 2 cfs | → |
| Platte R At Louisville Ne | 6,590 cfs | → |
| Weeping Water Creek At Union | 48 cfs | → |
| Salt Creek At 70th St. At Lincoln | 166 cfs | → |
| Wahoo Cr At Ashland | 156 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Upper Little Nemaha 50.
Track Upper Little Nemaha 50 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 Upper Little Nemaha 50
Where does the data for Upper Little Nemaha 50 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 Upper Little Nemaha 50.