Lashbrook Pond Dam Reservoir Report

Last Updated: December 19, 2025

Lashbrook Pond Dam in Hutsonville, Illinois, is a private recreational structure designed by the USDA NRCS and completed in 1967.


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Summary

The dam, built primarily for recreational purposes, stands at a height of 40 feet and has a length of 330 feet, providing a storage capacity of 140 acre-feet. Situated on the TRIB MILL CREEK, this earth dam with a buttress core is regulated by the Illinois Department of Natural Resources and undergoes regular inspections to ensure its safety and compliance with state regulations.

Despite its low hazard potential, Lashbrook Pond Dam poses a moderate risk, as indicated by its risk assessment rating of 3 out of 5. The dam features an uncontrolled spillway and outlet gates, with a spillway width of 255 feet. While the condition assessment is currently unavailable, the dam's last inspection in June 2020 revealed no immediate concerns. The dam's emergency action plan status and risk management measures are not specified, but it is reassuring to note that the structure is not owned or funded by any federal agencies.

Water resource and climate enthusiasts interested in Lashbrook Pond Dam can appreciate its role in providing recreational opportunities in Clark County, Illinois. The dam's location, design, and historical significance add to its appeal, making it a notable feature in the local landscape. As a privately-owned structure with state oversight, Lashbrook Pond Dam represents a balance between human enjoyment of water resources and the need for responsible stewardship to ensure its long-term sustainability in the face of changing environmental conditions.

Year Completed

1967

Dam Length

330

Dam Height

40

River Or Stream

TRIB MILL CREEK

Primary Dam Type

Earth

Nid Storage

140

Outlet Gates

Uncontrolled

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

40
       
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.