Marshalek Road Dam Reservoir Report

Last Updated: December 6, 2025

Marshalek Road Dam, located in Lancaster, Nebraska, stands as a vital structure operated by the local government for flood risk reduction along the TR-Little Rock Creek.


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Summary

Built in 1979, this earth dam reaches a height of 26 feet and stretches 570 feet in length, providing a storage capacity of 64 acre-feet. Despite its low hazard potential, the dam is regulated by the Nebraska Department of Natural Resources with regular inspections ensuring its satisfactory condition.

With a primary purpose of flood risk reduction, Marshalek Road Dam plays a crucial role in protecting the surrounding area from potential inundation events. The dam's satisfactory condition assessment in 2017 and its compliance with state regulatory standards demonstrate its effectiveness in mitigating flood risks. Additionally, its strategic location and low hazard potential contribute to its importance in maintaining water resource management and climate resilience in the region.

As an essential infrastructure in the Kansas City District, Marshalek Road Dam not only serves as a flood control measure but also highlights the collaboration between local government agencies and state regulators in ensuring the safety and functionality of water management systems. Its design, construction, and operation reflect a proactive approach to addressing climate-related challenges, making it a significant asset for water resource and climate enthusiasts invested in sustainable infrastructure development.

Year Completed

1979

Dam Length

570

Dam Height

26

River Or Stream

TR-LITTLE ROCK CREEK

Primary Dam Type

Earth

Surface Area

9

Hydraulic Height

26

Drainage Area

0.4

Nid Storage

64

Structural Height

31

Hazard Potential

Low

Foundations

Soil

Nid Height

31
       
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.