Mosher Little Lake Dam Reservoir Report
Nearby: Mosher Big Lake Dam H And K Lake Dam
Last Updated: December 25, 2025
Mosher Little Lake Dam, located in Bandera, Texas, is a private earth dam constructed in 1942 for recreational purposes.
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Summary
Standing at a height of 17.3 feet and spanning a length of 874 feet, the dam holds a maximum storage capacity of 220 acre-feet and covers a surface area of 15 acres. The dam, designed by Mr. Slats Rogers, is situated on the TR-Bandera Creek and is regulated by the state with regular inspections conducted since its completion.
Despite its moderate risk assessment, with a hazard potential not available and a condition assessment not rated, the dam has not been assigned a Dam Safety Action Classification (DSAC) date. The spillway, categorized as uncontrolled, has a width of 162 feet and can handle a maximum discharge of 7770 cubic feet per second. With four uncontrolled outlet gates, the dam has not been updated or revised in recent years, with the last inspection recorded in July 2010.
Water resource and climate enthusiasts may find Mosher Little Lake Dam a fascinating structure to study due to its historical significance and design features. As a recreational dam on Bandera Creek, it provides a valuable resource for the community while also posing certain risks that may require further assessment and management measures in the future. The dam's engineering and construction details, along with its regulatory oversight and potential for environmental impact, make it a noteworthy subject for ongoing research and monitoring in the field of water resource management.
Years Modified |
1988 - Other |
Year Completed |
1942 |
Dam Length |
874 |
Dam Height |
17.3 |
River Or Stream |
TR-BANDERA CREEK |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
17.3 |
Drainage Area |
1.7 |
Nid Storage |
220 |
Structural Height |
17.3 |
Outlet Gates |
Uncontrolled - 4 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Medina Rv At Bandera
|
8cfs |
Guadalupe Rv Nr Center Point
|
48cfs |
Middle Verde Ck At Sh 173 Nr Bandera
|
0cfs |
Guadalupe Rv At Comfort
|
52cfs |
Hondo Ck Nr Tarpley
|
0cfs |
Guadalupe Rv At Kerrville
|
46cfs |
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.
Mosher Little Lake Dam