Pen Branch Tank Dam Reservoir Report
Last Updated: December 5, 2025
Pen Branch Tank Dam, located in King County, Texas, was completed in 1960 and serves multiple purposes including fire protection, stock watering, and as a small fish pond.
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Summary
The dam, classified as an earth dam with a buttress core type, stands at 30 feet in height and stretches 500 feet in length. It has a storage capacity of 360 acre-feet, with a normal storage level of 192 acre-feet, covering a surface area of 20 acres.
Despite not having a spillway, the dam is equipped with outlet gates to regulate water flow. While the hazard potential is not available and the condition remains unrated, the risk assessment for Pen Branch Tank Dam is categorized as high. With no federal agency involvement, this privately owned structure on Pen Branch Creek is subject to state inspection and permitting, highlighting its importance for local water resource management and climate resilience efforts in the region.
Year Completed |
1960 |
Dam Length |
500 |
Dam Height |
30 |
River Or Stream |
PEN BRANCH CREEK |
Primary Dam Type |
Earth |
Surface Area |
20 |
Hydraulic Height |
30 |
Nid Storage |
360 |
Structural Height |
30 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Salt Fk Brazos Rv Nr Aspermont
|
0cfs |
Dmf Brazos Rv Nr Rule
|
11cfs |
S Wichita Rv Nr Benjamin
|
1cfs |
Dmf Brazos Rv Nr Aspermont
|
12cfs |
N Wichita Rv Nr Truscott
|
14cfs |
Millers Ck Nr Munday
|
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.
Pen Branch Tank Dam