Tom Green Dam Reservoir Report
Nearby: Dodgin Dam Dewees Dam No 1
Last Updated: December 19, 2025
Tom Green Dam, located in Oldham, Texas, along the TR-MIDDLE ALAMOSA CREEK, is a captivating Earth dam designed by the USDA NRCS and completed in 1960.
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Summary
Standing at 23 feet tall and stretching 380 feet in length, this private-owned dam serves a primary purpose of "Other," with a maximum storage capacity of 73 acre-feet. Despite being rated as "Not Available" in terms of hazard potential and "Not Rated" in condition assessment, the dam poses a high risk level (2) according to the data.
The dam, with a buttress core type and unlisted/unknown foundation, lacks a spillway and locks, with only one outlet gate available. While the surface area and drainage area are unspecified, the dam is regulated by the state and subject to inspections and permitting. The risk assessment suggests the need for heightened risk management measures due to its high-risk level, emphasizing the importance of monitoring and maintenance to ensure the safety and integrity of Tom Green Dam for water resource and climate enthusiasts in the region.
In conclusion, Tom Green Dam stands as a crucial structure in the water management system of Oldham, Texas, reflecting the collaborative efforts of the Natural Resources Conservation Service. Its historical significance and functional design highlight the intersection of human infrastructure and environmental conservation, underscoring the importance of proactive risk management to safeguard against potential hazards and ensure the sustainable utilization of water resources in the area.
Year Completed |
1960 |
Dam Length |
380 |
Dam Height |
23 |
River Or Stream |
TR-MIDDLE ALAMOSA CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
23 |
Nid Storage |
73 |
Structural Height |
23 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
23 |
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.
Tom Green Dam