Black Lake No 4 Dam Reservoir Report
Last Updated: December 5, 2025
Black Lake No 4 Dam, located in Hood, Texas, is a privately owned Earth dam completed in 1956 for water supply purposes.
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Summary
Standing at 28 feet high and 650 feet long, this dam on Robinson Creek has a storage capacity of 125 acre-feet, with a normal storage of 46 acre-feet. Despite its modest size and lack of a spillway, the dam is classified as having a high risk potential (2) due to unspecified factors, making it a point of interest for water resource and climate enthusiasts.
The dam has not been rated for its condition, and there is no information available on its inspection frequency or emergency action plan preparedness. The lack of detailed data on the dam's structure and maintenance may raise concerns among those who are interested in the safety and resilience of water infrastructure in the face of climate change and extreme weather events. Given its location in an area with a risk assessment of high, there is a need for further investigation and monitoring of Black Lake No 4 Dam to ensure its integrity and safety in the long run.
The dam's association with the Fort Worth District of the US Army Corps of Engineers, despite not being directly owned or funded by federal agencies, adds another layer of complexity to its oversight and management. The presence of only one outlet gate and the absence of a spillway raise questions about the dam's ability to handle excess water flow during heavy rainfall or flooding events. These factors make Black Lake No 4 Dam a notable site for research and discussion among water resource and climate enthusiasts seeking to understand the challenges and vulnerabilities of dams in the face of changing environmental conditions.
Year Completed |
1956 |
Dam Length |
650 |
Dam Height |
28 |
River Or Stream |
TR-ROBINSON CREEK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
28 |
Nid Storage |
125 |
Structural Height |
28 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
28 |
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.
Black Lake No 4 Dam
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