Spurlock Lake Dam Reservoir Report
Last Updated: December 5, 2025
Located in Madison, Texas, Spurlock Lake Dam is a private earth dam built in 1961 primarily for water supply purposes.
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Summary
Standing at a height of 24 feet and stretching over 1050 feet in length, the dam has a storage capacity of 200 acre-feet, with a normal storage level of 134 acre-feet. The dam is situated on the TR-NIXON BRANCH river/stream and is under the jurisdiction of the Galveston District of the US Army Corps of Engineers.
Despite being privately owned, the dam is regulated by the state with regular inspections and permitting in place. While it currently holds a high risk assessment level due to its condition not being rated, the hazard potential is deemed not available. The dam does not have a spillway and is associated with no other structures. With its strategic location and vital purpose in water supply, Spurlock Lake Dam serves as a significant asset for the local community and water resource enthusiasts alike.
Year Completed |
1961 |
Dam Length |
1050 |
Dam Height |
24 |
River Or Stream |
TR-NIXON BRANCH |
Primary Dam Type |
Earth |
Surface Area |
16 |
Hydraulic Height |
24 |
Nid Storage |
200 |
Structural Height |
24 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Spurlock Lake Dam