Maddox Ranch Corporation #1 Reservoir Report

Last Updated: December 6, 2025

Maddox Ranch Corporation #1 is a privately-owned earth dam located in Chinook, Montana, along Lodge Creek.


°F

°F

mph

Wind

%

Humidity

Summary

Completed in 1960, this dam serves the primary purpose of water supply, with a storage capacity of 50 acre-feet and a maximum storage capacity of 50 acre-feet. The dam stands at a height of 7 feet and spans a length of 60 feet, providing essential water resources for the surrounding area.

Managed by the Montana Department of Natural Resources and Conservation (DNRC), Maddox Ranch Corporation #1 has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. Although details such as inspection frequency, emergency action plan preparedness, and risk assessment are not provided in the data, the dam continues to play a crucial role in water resource management in Blaine County, Montana. As an integral part of the local water infrastructure, the dam underscores the importance of sustainable water resource practices in the face of changing climate patterns.

With Congressman Greg Gianforte representing the area in Congressional District 00, Montana, Maddox Ranch Corporation #1 stands as a testament to the collaboration between private owners, state regulators, and federal agencies in ensuring the safety and functionality of water supply infrastructure. As water resource and climate enthusiasts, understanding the role of dams like Maddox Ranch Corporation #1 in water management is key to addressing the challenges posed by climate change and ensuring the resilience of water resources for future generations.

Year Completed

1960

Dam Length

60

Dam Height

7

River Or Stream

LODGE CREEK

Primary Dam Type

Earth

Hydraulic Height

7

Nid Storage

50

Hazard Potential

Low

Nid Height

7
       
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.