Allington Dam 4780 Reservoir Report
Nearby: Rains Dam Big Indian Creek 12-1
Last Updated: December 13, 2025
Allington Dam 4780, located in Gage County, Nebraska, is a privately owned structure that serves the primary purpose of flood risk reduction along TR-Bills Creek.
°F
°F
mph
Wind
%
Humidity
Summary
Constructed in 1960, this earth dam stands at a height of 20.3 feet and has a storage capacity of 85.3 acre-feet, with a normal storage level of 22.3 acre-feet. Despite its importance in managing water resources in the area, the dam's condition assessment is poor, and it is classified as having a low hazard potential.
Managed by the Nebraska Department of Natural Resources, Allington Dam 4780 is subject to state regulation, permitting, inspection, and enforcement. However, the dam's last inspection in September 2018 revealed its poor condition, raising concerns about its ability to effectively reduce flood risks in the future. With an inadequate Emergency Action Plan (EAP) and no recent updates on emergency contacts or inundation maps, there are potential risks associated with the dam's operation in the event of a flood or other water-related emergency.
Given its critical role in flood risk reduction, stakeholders and water resource enthusiasts should closely monitor the condition of Allington Dam 4780 and advocate for necessary improvements to ensure its continued effectiveness in protecting the surrounding area from potential water-related hazards. Collaborative efforts between private owners, regulatory agencies, and local communities are essential in safeguarding this vital infrastructure for the long-term sustainability of water resources and climate resilience in the region.
Year Completed |
1960 |
Dam Length |
596 |
Dam Height |
20.3 |
River Or Stream |
TR-BILLS CREEK |
Primary Dam Type |
Earth |
Surface Area |
6.4 |
Hydraulic Height |
20.3 |
Drainage Area |
1.01 |
Nid Storage |
85.3 |
Structural Height |
20.3 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Big Blue R At Barneston Nebr
|
131cfs |
Turkey Creek Near De Witt
|
10cfs |
Little Blue R At Hollenberg
|
70cfs |
Big Blue R At Marysville
|
166cfs |
Little Blue River Near Fairbury
|
230cfs |
L Blue R Nr Barnes
|
101cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams 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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Feits Memorial Park
Chautauqua Municipal Park - Beatrice
Big Indian NRD Rec Area
Riverside Park - Beatrice
Rockford Lake State Rec Area
Diller City Park
Allington Dam 4780
Big Indian Recreation Area