Sediment Pond 1 Reservoir Report
Nearby: Sediment Pond 5 Sediment Pond 2
Last Updated: December 26, 2025
Sediment Pond 1, located in Jourdanton, Texas, is a private earth dam structure completed in 1981 with a primary purpose of sediment retention.
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Summary
The dam has a height of 16 feet, a length of 3000 feet, and a storage capacity of 1370 acre-feet, with a surface area of 75 acres and a drainage area of 5.2 square miles. The maximum discharge capacity of the spillway is 4100 cfs, with a spillway width of 375 feet.
Despite being regulated by the Mine Safety and Health Administration, Sediment Pond 1 has not been rated for its condition assessment and is considered to have a moderate risk level. The dam's hazard potential is listed as "Not Available," and there is no emergency action plan prepared or updated for the structure. The dam's outlet gates are uncontrolled, and it is not under the jurisdiction of any state regulatory agency, with no state permitting, inspection, or enforcement in place. The structure is not owned or funded by any federal agency, making it a unique and privately managed sediment retention facility in the region.
Year Completed |
1981 |
Dam Length |
3000 |
Dam Height |
16 |
River Or Stream |
|
Primary Dam Type |
Earth |
Surface Area |
75 |
Hydraulic Height |
16 |
Drainage Area |
5.2 |
Nid Storage |
1370 |
Structural Height |
16 |
Outlet Gates |
Uncontrolled - 1 |
Hazard Potential |
Not Available |
Foundations |
Soil |
Nid Height |
16 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
San Miguel Ck Nr Tilden
|
0cfs |
Atascosa Rv At Whitsett
|
0cfs |
Atascosa Rv Nr Mccoy
|
0cfs |
Frio Rv At Tilden
|
0cfs |
Choke Canyon Res Owc Nr Three Rivers
|
32cfs |
Nueces Rv Nr Three Rivers
|
31cfs |
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.
Sediment Pond 1