Pomme De Terre Lake Near Hermitage Reservoir Report

Last Updated: December 18, 2025

Pomme de Terre Lake is a reservoir located near Hermitage, Missouri.


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Summary

The lake was created in 1961 by the construction of the Pomme de Terre Dam on the Pomme de Terre River, a tributary of the Osage River. The lake covers an area of 7,820 acres and has a shoreline of 113 miles.

The lake is primarily fed by the Pomme de Terre River and its tributaries, but it also receives water from the Truman Reservoir and Stockton Lake. The lake is used for flood control, recreation, and as a source of drinking water for nearby communities.

Agriculture is an important industry in the area around Pomme de Terre Lake, and the lake is used for irrigation and as a source of water for livestock. Recreational activities on the lake include fishing, boating, swimming, and camping. The lake is also home to a variety of wildlife, including bald eagles, osprey, and white-tailed deer.

Reservoir Details

Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft 24hr Change 0.0%
Percent of Normal 100%
Minimum 833.89 ft
2010-11-01
Maximum 864.68 ft
2019-06-18
Average 840 ft
Hydraulic_Height 155
Drainage_Area 611
Year_Completed 1961
Nid_Storage 650000
River_Or_Stream POMME DE TERRE RIVER
Structural_Height 155
Foundations Rock, Soil
Surface_Area 7820
Outlet_Gates Uncontrolled - 0
Dam_Length 4630
Hazard_Potential High
Primary_Dam_Type Rockfill
Nid_Height 155
       
Seasonal Comparison
Lake Or Reservoir Water Surface Elevation Above Ngvd 1929, Ft Levels

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.