Reilly Lake Dam Reservoir Report

Last Updated: December 6, 2025

Reilly Lake Dam, located in Crawford County, Missouri, was completed in 1964 and serves as a recreational area for water resource and climate enthusiasts.


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Summary

The dam, primarily owned by a private entity, stands at a height of 32 feet and has a storage capacity of 68 acre-feet. With a low hazard potential and a condition assessment of "Not Rated," the dam provides a safe and enjoyable environment for visitors seeking outdoor activities.

Situated on Pleasant Valley Creek, a tributary of the larger river system, Reilly Lake Dam offers a surface area of 4 acres and a drainage area of 32 square miles. Despite not being regulated by the state or inspected regularly, the dam's design as an earth structure with buttress core types ensures stability and durability. With its picturesque location and ample storage capacity, the dam provides a peaceful retreat for nature lovers and water enthusiasts alike.

Although not under the jurisdiction of state agencies, Reilly Lake Dam in Oak Hill, Missouri, remains a popular destination for recreational purposes. The dam's location within the Kansas City District and its affiliation with private ownership contribute to its unique charm and appeal. Visitors can enjoy fishing, boating, and other water-based activities in a serene setting surrounded by the natural beauty of Crawford County.

Year Completed

1964

Dam Height

32

River Or Stream

PLEASANT VALLEY CREEK-OFFSTRM

Primary Dam Type

Earth

Surface Area

4

Drainage Area

32

Nid Storage

68

Structural Height

32

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

32
       
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.