Isham Dam 9876 Reservoir Report
Nearby: Isham Dam 9878 Ormesher Dam
Last Updated: December 7, 2025
Isham Dam 9876, located in Dawes, Nebraska, serves multiple purposes including fire protection, stock watering, and creating a small fish pond.
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Summary
Completed in 1960, this earth dam stands at a height of 18 feet and has a storage capacity of 102.1 acre-feet with a normal storage of 82.8 acre-feet. The dam spans 555 feet and covers a surface area of 14.1 acres, with a drainage area of 1.06 square miles along the TR-WHITE RIVER.
Managed by a private owner, Isham Dam 9876 is regulated by the Nebraska Department of Natural Resources for state jurisdiction, permitting, inspection, and enforcement. With a low hazard potential and a condition assessment that is currently not rated, the dam has an inspection frequency of 5 years. While there is no information available on emergency action plans, inundation maps, or risk assessments, Isham Dam 9876 remains a significant water resource infrastructure in the region, supporting various community needs and activities.
Year Completed |
1960 |
Dam Length |
555 |
Dam Height |
18 |
River Or Stream |
TR-WHITE RIVER |
Primary Dam Type |
Earth |
Surface Area |
14.1 |
Hydraulic Height |
18 |
Drainage Area |
1.06 |
Nid Storage |
102.1 |
Structural Height |
18 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Isham Dam 9876