Sedimentation Pond No 20 Reservoir Report
Last Updated: March 10, 2026
Sedimentation Pond No 20, located in Jewett, Texas, is a private earth dam constructed in 1988 with a primary purpose of serving as a sedimentation pond.
Summary
It has a structural height of 34 feet and a total length of 1100 feet, providing a storage capacity of 196 acre-feet. The pond covers a surface area of 17 acres and is situated along the Pine Branch stream in Freestone County.
Managed by the Mine Safety and Health Administration, Sedimentation Pond No 20 has not been rated for its condition assessment but has been identified as having a high risk potential. Despite being regulated by the state and undergoing periodic inspections, the dam does not have a spillway or outlet gates, highlighting potential safety concerns in the event of a significant discharge event. While no recent modifications or updates have been reported, the dam remains an important infrastructure for managing sedimentation in the area.
Enthusiasts interested in water resource management and climate change may find Sedimentation Pond No 20 to be a valuable case study in dam construction and maintenance. With its unique design features and risk assessment profile, this dam serves as a focal point for understanding the challenges and considerations involved in managing water infrastructure in the context of evolving environmental conditions.
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15-Day Weather Outlook
Year Completed |
1988 |
Dam Length |
1100 |
Dam Height |
34 |
River Or Stream |
PINE BRANCH |
Primary Dam Type |
Earth |
Surface Area |
17 |
Hydraulic Height |
34 |
Drainage Area |
0.5 |
Nid Storage |
196 |
Structural Height |
34 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
34 |
Seasonal Comparison
5-Day Hourly Forecast Detail
Nearby Streamflow Levels
Big Ck Nr Freestone
|
3cfs |
Upper Keechi Ck Nr Oakwood
|
20cfs |
Navasota Rv Abv Groesbeck
|
1cfs |
Navasota Rv Nr Easterly
|
17cfs |
Trinity Rv Nr Oakwood
|
10800cfs |
Tehuacana Ck Nr Streetman
|
1cfs |
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.
Sedimentation Pond No 20