State Line Lake Dam Reservoir Report
Last Updated: December 5, 2025
State Line Lake Dam, located in Caddo, Louisiana, is a privately-owned structure regulated by the Louisiana Department of Transportation and Development.
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Summary
This earth dam, with a height of 28 feet and a hydraulic height of 14 feet, serves primarily for recreational purposes, providing a storage capacity of 2100 acre-feet. The dam spans a length of 890 feet and has a spillway width of 100 feet.
With a low hazard potential and fair condition assessment, State Line Lake Dam is considered to have a moderate risk level (3). The last inspection conducted in December 2020 found the dam to be in satisfactory condition. Although no emergency action plan (EAP) is currently prepared, the dam meets regulatory guidelines for state permitting, inspection, and enforcement. Overall, State Line Lake Dam remains a vital water resource structure for the community, ensuring public safety and recreation along the TR. Red River.
Dam Length |
890 |
Dam Height |
28 |
River Or Stream |
TR. RED RIVER |
Primary Dam Type |
Earth |
Surface Area |
75 |
Hydraulic Height |
14 |
Drainage Area |
0.93 |
Nid Storage |
2100 |
Structural Height |
30 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Cypress Bayou Near Keithville
|
11cfs |
Sabine Rv Nr Carthage
|
9200cfs |
Sabine Rv Nr Beckville
|
946cfs |
Big Cypress Ck Abv Sh 43 Nr Karnack
|
538cfs |
Red Chute Bayou At Sligo
|
55cfs |
Little Cypress Ck Nr Jefferson
|
358cfs |
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.
State Line Lake Dam