Oak-Middle 82-B (Modified) Reservoir Report
Nearby: Oak-Middle 87-A Oak-Middle 86-A
Last Updated: December 6, 2025
Oak-Middle 82-B (Modified) is a crucial water resource project located in Seward, Nebraska, designed by the USDA NRCS with a primary purpose of flood risk reduction.
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Summary
This earth dam, completed in 1963, stands at a height of 35.4 feet and has a structural height of 45.1 feet, providing essential protection for the surrounding area against potential flooding events. With a high hazard potential but a satisfactory condition assessment as of June 2020, this dam plays a significant role in managing water flow and storage in the region.
Owned by the local government and regulated by the Nebraska Department of Natural Resources, Oak-Middle 82-B (Modified) serves as a vital infrastructure for flood control in the area. With a normal storage capacity of 32.4 acre-feet and a maximum storage of 371.4 acre-feet, this structure plays a crucial role in managing water levels and ensuring the safety of the community. The dam's location on TR-MIDDLE OAK CREEK and its proximity to the city of FARMSTEAD highlight its importance in safeguarding the surrounding environment and residents from potential water-related risks.
Despite its age, Oak-Middle 82-B (Modified) continues to undergo regular inspections to ensure its structural integrity and functionality. With a high hazard potential and a satisfactory condition assessment, this dam remains a key component in the local water resource management system. Its design by the USDA NRCS and oversight by the Nebraska Department of Natural Resources underscore the collaborative efforts involved in maintaining and operating this essential flood risk reduction infrastructure.
Year Completed |
1963 |
Dam Length |
899 |
Dam Height |
35.4 |
River Or Stream |
TR-MIDDLE OAK CREEK |
Primary Dam Type |
Earth |
Surface Area |
9.5 |
Hydraulic Height |
35.4 |
Drainage Area |
0.9 |
Nid Storage |
371.4 |
Structural Height |
45.1 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
45 |
Seasonal Comparison
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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.
Oak-Middle 82-B (Modified)
Meadow Lark