Oil Mill Lake Dam Reservoir Report
Last Updated: December 22, 2025
Oil Mill Lake Dam, located in Falls County, Texas, was completed in 1930 and primarily serves as a recreational site for water enthusiasts and climate lovers.
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Summary
This earth dam, with a height of 21 feet and a length of 1350 feet, creates a storage capacity of 250 acre-feet, offering a serene surface area of 19.7 acres for visitors to enjoy. The dam's spillway, with a width of 45 feet, is uncontrolled, allowing for the natural flow of water from TR-BEAN BRANCH river or stream.
Despite its historical significance and recreational value, Oil Mill Lake Dam's condition assessment in 2016 reported a poor rating, indicating the need for maintenance and potential hazard mitigation measures. The dam is state-regulated and inspected by the Texas Commission on Environmental Quality (TCEQ) to ensure public safety. With its moderate risk rating and a frequency of inspections every two years, the dam's management and emergency preparedness protocols are crucial for safeguarding the surrounding community and environment. Oil Mill Lake Dam stands as a reminder of the importance of responsible water resource management and climate resilience in the face of changing environmental conditions.
Year Completed |
1930 |
Dam Length |
1350 |
Dam Height |
21 |
River Or Stream |
TR-BEAN BRANCH |
Primary Dam Type |
Earth |
Surface Area |
19.7 |
Hydraulic Height |
21 |
Drainage Area |
0.42 |
Nid Storage |
250 |
Structural Height |
21 |
Outlet Gates |
Uncontrolled - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
21 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Brazos Rv Nr Highbank
|
205cfs |
Brazos Rv At Waco
|
98cfs |
Little Pond Ck Nr Burlington
|
0cfs |
N Elm Ck At Rosebud Rd Nr Meeks
|
0cfs |
Navasota Rv Abv Groesbeck
|
2cfs |
Big Elm Ck At Sh 77 Nr Cameron
|
940cfs |
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.
Oil Mill Lake Dam