Knox Dam No 3 Reservoir Report
Last Updated: December 5, 2025
Located in Coleman, Texas, Knox Dam No 3 stands as a testament to water resource management, serving as a vital component in the region's water supply infrastructure.
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Summary
Built in 1960, this earth dam with a structural height of 26 feet and a length of 630 feet, creates a reservoir with a capacity of 177 acre-feet. Despite its small size, this dam plays a crucial role in providing water for the surrounding area, particularly during dry seasons.
Managed by a private owner, Knox Dam No 3 is not regulated by the state but undergoes regular inspections to ensure its structural integrity. While the dam does not have a spillway, it is equipped with one outlet gate to control water flow. With a high hazard potential rating, efforts to assess and manage the risk associated with the dam are ongoing, highlighting the importance of proper maintenance and emergency preparedness in safeguarding the local community and environment.
As enthusiasts of water resources and climate change, the story of Knox Dam No 3 serves as a reminder of the intricate balance between human development and environmental conservation. Its role in providing water for the region underscores the need for sustainable water management practices in the face of a changing climate. The ongoing risk assessments and management measures associated with the dam also highlight the importance of proactive measures to ensure the safety and resilience of critical infrastructure in the face of potential hazards.
Year Completed |
1960 |
Dam Length |
630 |
Dam Height |
26 |
River Or Stream |
BUFFALO BRANCH |
Primary Dam Type |
Earth |
Surface Area |
13 |
Hydraulic Height |
26 |
Nid Storage |
177 |
Structural Height |
26 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Jim Ned Ck At Cr 140 Nr Coleman
|
0cfs |
Pecan Bayou Nr Cross Cut
|
436cfs |
Hords Ck Nr Coleman
|
0cfs |
Deep Ck At Moran
|
0cfs |
Colorado Rv Nr Stacy
|
1cfs |
Cedar Ck At Ih 20
|
0cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Knox Dam No 3
Lk Coleman Nr Novice