Mccasland Lake No 1 Dam Reservoir Report
Last Updated: December 6, 2025
Mccasland Lake No 1 Dam, located in Mills County, Texas, serves primarily for irrigation purposes.
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Summary
Built in 1971, this earth dam stands at a height of 21 feet and has a storage capacity of 235 acre-feet. The dam, situated on TR-Merrell Creek, is owned and operated by a private entity, with state permitting and inspection requirements in place.
Despite its small size, Mccasland Lake No 1 Dam poses a high risk, according to the data provided. The hazard potential is not available, and the condition assessment is not rated. The dam does not have a spillway and is not regulated by the state. With no associated structures and limited information on its maintenance and emergency preparedness, there are potential concerns for the safety and integrity of this structure.
For water resource and climate enthusiasts, Mccasland Lake No 1 Dam provides an interesting case study in the management and regulation of smaller irrigation dams in Texas. The lack of detailed information on its design, construction, and maintenance highlights the importance of comprehensive data collection and monitoring for ensuring the safety and sustainability of water infrastructure. As climate change continues to impact water resources, understanding the risks and vulnerabilities of dams like Mccasland Lake No 1 becomes increasingly crucial for effective water management and adaptation strategies.
Year Completed |
1971 |
Dam Height |
21 |
River Or Stream |
TR-MERRELL CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
21 |
Nid Storage |
235 |
Structural Height |
21 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
21 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Pecan Bayou Nr Mullin
|
2cfs |
Leon Rv Nr Hamilton
|
4cfs |
Colorado Rv Nr San Saba
|
211cfs |
Leon Rv Nr Hasse
|
2cfs |
San Saba Rv At San Saba
|
140cfs |
N Bosque Rv At Hico
|
6cfs |
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.
Mccasland Lake No 1 Dam