Johnson Tank Dam Reservoir Report
Nearby: County Tank Dam Coleman Lake Dam
Last Updated: December 5, 2025
Johnson Tank Dam, located in Borden, Texas, was completed in 1944 and serves as a vital water resource for the region.
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Summary
Owned by the local government, the dam stands at a height of 26 feet and has a storage capacity of 560 acre-feet, primarily for recreational purposes. It is regulated by the Texas Commission on Environmental Quality (TCEQ) and undergoes regular inspections and enforcement to ensure its safety and functionality.
Despite its age, Johnson Tank Dam has not been rated for its condition, with the last inspection dating back to 1979. The dam poses a high risk, with limited information on emergency preparedness and potential hazards. With no spillway and a single outlet gate, the dam's structural integrity and ability to handle maximum discharge remain untested. As climate change continues to impact water resources, the importance of maintaining and monitoring dams like Johnson Tank becomes increasingly crucial for the surrounding communities' water supply and safety.
For water resource and climate enthusiasts, Johnson Tank Dam presents a unique case study of a historic earth dam in need of updated risk assessments and management measures. As the region faces changing precipitation patterns and increasing water demands, the dam's role in providing water supply and recreational opportunities underscores the importance of proactive maintenance and monitoring. With a heightened focus on climate resilience and emergency preparedness, Johnson Tank Dam serves as a reminder of the ongoing challenges and opportunities in managing water resources in a changing climate.
Year Completed |
1944 |
Dam Length |
1210 |
Dam Height |
26 |
River Or Stream |
TR-SALT CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
26 |
Nid Storage |
560 |
Structural Height |
26 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
26 |
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.
Johnson Tank Dam