South Branch 93 Reservoir Report

Last Updated: December 5, 2025

South Branch 93 is a crucial earth dam located in Otoe, Nebraska, designed by USDA NRCS to mitigate flood risks along the TR-S FK Little Nemaha River.


°F

°F

mph

Wind

%

Humidity

Summary

Completed in 1983, this dam stands at a height of 34 feet and has a storage capacity of 445 acre-feet, providing flood protection for the surrounding area. With a satisfactory condition assessment and low hazard potential, South Branch 93 plays a vital role in safeguarding against potential water-related disasters in the region.

Managed by the local government and regulated by NE DNR, South Branch 93 undergoes state inspection, enforcement, and permitting to ensure its structural integrity and operational efficiency. With a drainage area of 1.6 square miles and a maximum discharge capacity of 422 cubic feet per second, this dam serves as a critical infrastructure for water resource management in the area. Despite its low hazard potential, South Branch 93 remains a key component in the overall flood risk reduction strategy for this part of Nebraska.

As a part of the flood risk reduction system, South Branch 93 contributes to the overall water management efforts in the region, providing essential protection against potential flooding events. With its stone core and soil foundation, this earth dam stands as a testament to the collaborative efforts between the Natural Resources Conservation Service and local authorities to safeguard the community from water-related risks. The data on South Branch 93 highlights its significance in maintaining water security and climate resilience in Otoe, Nebraska.

Year Completed

1983

Dam Length

830

Dam Height

34

River Or Stream

TR-S FK LITTLE NEMAHA RIVER

Primary Dam Type

Earth

Surface Area

15

Hydraulic Height

31

Drainage Area

1.6

Nid Storage

445

Structural Height

38

Hazard Potential

Low

Foundations

Soil

Nid Height

38
       
Seasonal Comparison

Weather Forecast

View more

Nearby Streamflow Levels

South Branch 93SALT CREEK AT ROCA Preview Salt Creek At Roca
4.93cfs
5cfs
South Branch 93SALT CREEK AT PIONEERS BLVD AT LINCOLN Preview Salt Creek At Pioneers Blvd At Lincoln
10.5cfs
11cfs
South Branch 93STEVENS CREEK NR. LINCOLN Preview Stevens Creek Nr. Lincoln
2.69cfs
3cfs
South Branch 93SALT CREEK AT LINCOLN Preview Salt Creek At Lincoln
76.6cfs
77cfs
South Branch 93HAINES BRANCH AT SW 56th ST. AT LINCOLN Preview Haines Branch At Sw 56th St. At Lincoln
1.33cfs
1cfs
South Branch 93SALT CREEK AT 70th ST. AT LINCOLN Preview Salt Creek At 70th St. At Lincoln
91.8cfs
92cfs

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. 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

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, 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.
View more

Nearby Reservoirs

View more

Featured Parks