Lwt Dam Reservoir Report

Last Updated: December 5, 2025

Lwt Dam, located in Webster, Nebraska, along the TR-AYRES CREEK, was completed in 1960 for the primary purpose of flood risk reduction.


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Summary

This private-owned earth dam stands at a height of 16.8 feet and has a storage capacity of 51.7 acre-feet. With a low hazard potential and not currently rated for condition assessment, the dam remains a crucial structure in the region's water resource management.

Managed and regulated by the Nebraska Department of Natural Resources (NE DNR), Lwt Dam plays a vital role in controlling water levels and ensuring the safety of surrounding communities. Despite its age, the dam continues to operate effectively, with regular state inspections and enforcement measures in place. Its strategic location and design make it an essential asset in the overall flood risk reduction strategy for the area.

As water resource and climate enthusiasts, the Lwt Dam presents an intriguing case study in dam infrastructure and management. From its construction in the early 1960s to its current state of operation, the dam exemplifies the intersection of engineering, environmental stewardship, and regulatory oversight. Its contribution to flood risk reduction and water storage underscores the importance of maintaining and monitoring such critical infrastructure in the face of evolving climate challenges.

Year Completed

1960

Dam Length

290

Dam Height

16.8

River Or Stream

TR-AYRES CREEK

Primary Dam Type

Earth

Surface Area

4.2

Hydraulic Height

16.8

Drainage Area

1.26

Nid Storage

51.7

Structural Height

16.8

Hazard Potential

Low

Foundations

Soil

Nid Height

17
       
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.