Myrtis Mill Pond Reservoir Report
Last Updated: December 5, 2025
Myrtis Mill Pond, located in Caddo, Louisiana, is a privately owned earth dam structure built in 1955 across Myrtis Mill Creek.
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Summary
The dam stands at a height of 17 feet and has a maximum storage capacity of 70 acre-feet, with a normal storage level of 50 acre-feet. The pond covers a surface area of 4.7 acres and has a spillway width of 50 feet.
Managed by the Louisiana Department of Transportation and Development, Myrtis Mill Pond is regularly inspected and regulated to ensure its safety and compliance with state guidelines. With a low hazard potential and a moderate risk assessment rating, the dam has undergone structural modifications in 1982 to enhance its resilience. Despite being not rated in terms of condition assessment, the dam is considered to meet safety standards and poses no immediate threat to surrounding areas.
Water resource and climate enthusiasts would find Myrtis Mill Pond an intriguing site for studying earth dam structures and their impact on local water systems. With its unique design and purpose, the pond serves as a valuable resource for understanding the management and maintenance of water infrastructure in Louisiana.
Years Modified |
1982 - Structural |
Year Completed |
1955 |
Dam Length |
986 |
Dam Height |
17 |
River Or Stream |
MYRTIS MILL CREEK |
Primary Dam Type |
Earth |
Surface Area |
4.7 |
Hydraulic Height |
8 |
Nid Storage |
70 |
Structural Height |
15 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
17 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Red River At Spring Bank
|
7140cfs |
Big Cypress Ck Abv Sh 43 Nr Karnack
|
538cfs |
Black Cypress Bayou At Jefferson
|
241cfs |
Little Cypress Ck Nr Jefferson
|
358cfs |
Sulphur Rv Nr Texarkana
|
576cfs |
Big Cypress Ck Nr Jefferson
|
97cfs |
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.
Myrtis Mill Pond