Cj Gerlach Dam Reservoir Report
Nearby: Sally Lake Dam Devils Lake Dam
Last Updated: December 6, 2025
Cj Gerlach Dam, located in Polk, Texas, along the Sally Creek, is a private earth dam that was completed in 1960 for recreational purposes.
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Summary
Standing at 19 feet high and 500 feet long, this dam has a storage capacity of 280 acre-feet and an uncontrolled spillway with a width of 100 feet. Despite being privately owned, the state of Texas regulates and inspects the dam to ensure its safety and functionality.
The dam, designed as a buttress-type structure, has two uncontrolled outlet gates and is primarily used for recreation. While the hazard potential of the dam is currently listed as "Not Available" and its condition remains unrated, a moderate risk assessment has been assigned to the site. With no recent inspection data since 1999, the dam's emergency action plan status and risk management measures are currently unknown, highlighting the need for updated assessments and monitoring to ensure the safety of the surrounding community and environment.
Cj Gerlach Dam, nestled in a picturesque location, plays a crucial role in providing recreational opportunities to the local residents and visitors. However, with its age and limited inspection history, the importance of regular assessments and maintenance to mitigate potential risks and ensure the long-term stability of the dam cannot be overstated. Efforts to update emergency action plans, enhance risk management measures, and conduct comprehensive inspections are essential to safeguarding this vital water resource and preserving its recreational value for future generations.
Year Completed |
1960 |
Dam Length |
500 |
Dam Height |
19 |
River Or Stream |
SALLY CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
19 |
Nid Storage |
280 |
Structural Height |
19 |
Outlet Gates |
Uncontrolled - 2 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
19 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Trinity Rv Nr Goodrich
|
3350cfs |
Menard Ck Nr Rye
|
168cfs |
Trinity Rv At Romayor
|
3640cfs |
Long King Ck At Livingston
|
13cfs |
E Fk San Jacinto Rv Nr Cleveland
|
86cfs |
Kickapoo Ck At Onalaska
|
17cfs |
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.
Cj Gerlach Dam
Livingston Res Nr Goodrich
Preserve Boundary In The Big Sandy Unit To Confluence With Trinity River