Collins Lake Dam Reservoir Report
Last Updated: December 5, 2025
Collins Lake Dam in Texas, completed in 1965, serves primarily for recreation and water supply purposes.
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Summary
Owned privately, this earth dam with a buttress core stands at a height of 12 feet and stretches 1350 feet in length. With a storage capacity of 105 acre-feet, the dam is situated on the TR-Rough Creek and is managed by the Fort Worth District of the US Army Corps of Engineers.
Despite being State-permitted and inspected, Collins Lake Dam lacks a spillway and is not regulated by the state. With a risk assessment rating of High (2), the dam's hazard potential is currently not available, and its condition remains unrated. Emergency action plans, inundation maps, and risk management measures for the dam are also listed as not available. The dam's location in Mills County, Texas, makes it a valuable but potentially risky asset in the region.
For water resource and climate enthusiasts, Collins Lake Dam presents an intriguing case study of a privately owned structure built for both recreational and water supply purposes. While it offers storage for up to 105 acre-feet of water, the dam's lack of a spillway and incomplete regulatory oversight raises concerns about its overall safety and management. With a High (2) risk assessment rating and limited information on emergency preparedness, this dam serves as a reminder of the importance of proper infrastructure maintenance and risk mitigation in the face of potential hazards.
Year Completed |
1965 |
Dam Length |
1350 |
Dam Height |
12 |
River Or Stream |
TR-ROUGH CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
12 |
Nid Storage |
105 |
Structural Height |
12 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
12 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Pecan Bayou Nr Mullin
|
2cfs |
San Saba Rv At San Saba
|
140cfs |
Colorado Rv Nr San Saba
|
211cfs |
Brady Ck At Brady
|
22cfs |
Jim Ned Ck At Cr 140 Nr Coleman
|
0cfs |
Pecan Bayou Nr Cross Cut
|
436cfs |
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.
Collins Lake Dam