Mononame 565 Reservoir Report

Last Updated: December 24, 2025

Mononame 565 is a privately owned earth dam located in St.


°F

°F

mph

Wind

%

Humidity

Summary

Clair, Missouri, near the city of Deepwater. Built in 1959, this dam serves primarily for recreational purposes and has a height of 15 feet, with a storage capacity of 56 acre-feet. Situated on TR Spill Creek offstream, this dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment.

Although not regulated or permitted by the state, Mononame 565 provides important recreational opportunities for the local community and visitors. With a surface area of 7 acres and a drainage area of 45, this dam offers a tranquil setting for outdoor activities such as fishing, boating, and picnicking. Despite its modest size, this dam plays a role in enhancing the quality of life and supporting the ecosystem in the area.

As water resource and climate enthusiasts, it is important to recognize the value of dams like Mononame 565 in providing both recreational benefits and potential water storage capacity. By understanding the characteristics and purposes of dams such as this one, we can better appreciate the role they play in our environment and how they contribute to the overall management of water resources in Missouri and beyond.

Year Completed

1959

Dam Height

15

River Or Stream

TR SPILL CREEK OFFSTREAM

Primary Dam Type

Earth

Surface Area

7

Drainage Area

45

Nid Storage

56

Structural Height

15

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

15
       
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.