Sievert Lake Dam Reservoir Report
Last Updated: December 5, 2025
Sievert Lake Dam, located in Lee County, Texas, was completed in 1958 for the primary purpose of water supply.
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Summary
This earth dam stands at a height of 18 feet and spans 500 feet in length, with a storage capacity of 130 acre-feet. Despite its relatively small size, the dam serves a crucial role in providing water to the surrounding area.
With no spillway and limited discharge capabilities, Sievert Lake Dam poses a high risk according to assessments. While it is not currently regulated by the state, the dam undergoes regular inspections to ensure its structural integrity. As a privately owned structure, there is a need for continued monitoring and maintenance to mitigate potential hazards and ensure the safety of the community that relies on it for water resources.
For water resource and climate enthusiasts, Sievert Lake Dam presents an intriguing case study of a smaller-scale dam with significant implications for local water supply. Its design and construction characteristics, coupled with its risk assessment and lack of regulatory oversight, offer valuable insights into the challenges and responsibilities associated with managing water infrastructure in diverse environments like Texas.
Year Completed |
1958 |
Dam Length |
500 |
Dam Height |
18 |
River Or Stream |
TR-LITTLE BULLFROG CREEK |
Primary Dam Type |
Earth |
Surface Area |
10 |
Hydraulic Height |
18 |
Nid Storage |
130 |
Structural Height |
18 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Middle Yegua Ck Nr Dime Box
|
0cfs |
Colorado Rv At Smithville
|
465cfs |
E Yegua Ck Nr Dime Box
|
0cfs |
Colorado Rv Abv La Grange
|
497cfs |
Colorado Rv At Bastrop
|
376cfs |
Yegua Ck Nr Somerville
|
0cfs |
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.
Sievert Lake Dam