Turtle Creek 2 Reservoir Report

Last Updated: December 11, 2025

Turtle Creek 2 is a water resource infrastructure located in Sarpy, Nebraska, designed by USDA NRCS and regulated by the Nebraska Department of Natural Resources.


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Summary

This earth dam, completed in 1961, serves multiple purposes including flood risk reduction. With a height of 30 feet and a length of 700 feet, Turtle Creek 2 has a storage capacity of 318 acre-feet and covers a surface area of 6 acres. It plays a crucial role in managing water flow and protecting the surrounding area from potential flooding events.

The dam has a low hazard potential and is currently in satisfactory condition as of the last inspection in June 2020. It has a hydraulic height of 22 feet and a structural height of 39 feet, with a drainage area of 2.1 square miles. Turtle Creek 2 has been modified in 2009 for hydraulic purposes, ensuring its continued effectiveness in flood risk reduction. The dam is equipped with outlet gates and is subject to regular inspections and enforcement measures to maintain its integrity and safety.

Located in the Kansas City District, Turtle Creek 2 stands as a testament to effective water resource management and climate resilience efforts in Nebraska. With its well-maintained infrastructure and regulatory oversight, this dam serves as a vital component in safeguarding the local community from potential flood events, showcasing the importance of sustainable water resource practices in the face of changing climate conditions.

Years Modified

2009 - Hydraulic

Year Completed

1961

Dam Length

700

Dam Height

30

River Or Stream

TURTLE CREEK

Primary Dam Type

Earth

Surface Area

6

Hydraulic Height

22

Drainage Area

2.1

Nid Storage

318

Structural Height

39

Hazard Potential

Low

Foundations

Soil

Nid Height

39
       
Seasonal Comparison

Weather Forecast

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.