Deer Ridge Community Lake Dam Reservoir Report

Last Updated: December 11, 2025

Deer Ridge Community Lake Dam is a state-owned structure located in Monticello, Missouri, within Lewis County.


°F

°F

mph

Wind

%

Humidity

Summary

Built in 1960, this earth-type dam serves primarily for recreational purposes, offering a surface area of 48 acres and a normal storage capacity of 528 acre-feet. The dam stands at a height of 38 feet and stretches 500 feet in length, holding a maximum storage of 608 acre-feet. The dam is regulated and inspected by the Missouri Dam and Reservoir Safety Program, ensuring its structural integrity and safety.

Despite being categorized as having a high hazard potential, the condition assessment of Deer Ridge Community Lake Dam is deemed satisfactory as of December 2007. Regular inspections are conducted every three years, with the last inspection taking place in July 2016. The spillway, with a width of 150 feet, is designed to handle a maximum discharge of 1,916 cubic feet per second. While the risk assessment labels the dam with a moderate risk rating of 3, there are no specific risk management measures or inundation maps prepared for the area.

With its picturesque location along the TR-North Fabius River, Deer Ridge Community Lake Dam offers a tranquil setting for water resource and climate enthusiasts to enjoy recreational activities such as fishing, boating, and wildlife observation. As a significant part of the local landscape, the dam represents a balance between human recreational needs and environmental conservation efforts, highlighting the importance of responsible dam management and maintenance for the preservation of water resources and the surrounding ecosystem.

Year Completed

1960

Dam Length

500

Dam Height

38

River Or Stream

TR-NORTH FABIUS RIVER

Primary Dam Type

Earth

Surface Area

48

Drainage Area

608

Nid Storage

608

Structural Height

38

Outlet Gates

Valve

Hazard Potential

High

Foundations

Rock

Nid Height

38
       
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.