Maddox #1 Reservoir Report

Last Updated: December 10, 2025

Maddox #1 is a privately owned earth dam located in Houston, Tennessee, built in 1987 for recreational purposes.


°F

°F

mph

Wind

%

Humidity

Summary

Situated on the TRIBSHOULDER STRAP BRNCH stream, the dam stands at a structural height of 30 feet and has a hydraulic height of 23 feet, providing a storage capacity of 65 acre-feet. The dam's primary function is for recreation, with a low hazard potential and a moderate risk assessment rating.

Despite not being regulated by the state of Tennessee, Maddox #1 is subject to periodic inspections, with the last one conducted in December 2019. The dam's condition is currently not rated, and there is no Emergency Action Plan (EAP) in place. While the risk assessment deems it to have a moderate risk level, there are no specific risk management measures mentioned in the available data. Overall, Maddox #1 serves as a key recreational resource in the area, providing both enjoyment and a water storage capacity for the local community.

Year Completed

1987

River Or Stream

TRIBSHOULDER STRAP BRNCH

Primary Dam Type

Earth

Surface Area

40

Hydraulic Height

23

Drainage Area

4

Nid Storage

65

Structural Height

30

Outlet Gates

None

Hazard Potential

Low

Nid Height

30
       
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.