Calvert Mine Spc 5 Dam Reservoir Report
Last Updated: December 5, 2025
Calvert Mine Spc 5 Dam, located in Robertson County, Texas, was completed in 1989 by the designer Morrison Knudsen.
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Summary
This private-owned Earth dam stands at a height of 30 feet and has a length of 1100 feet, creating a reservoir with a storage capacity of 250 acre-feet. The primary purpose of this dam is listed as 'Other', and it serves the Bee Branch river/stream.
Despite being rated as 'Not Rated' in terms of condition assessment, the dam is classified as having a high risk potential. With no spillway and limited discharge capacity, the dam poses potential hazards despite its risk management measures not being specified. The last inspection date was in January 1990, and it is not under state jurisdiction or regulation, highlighting the importance of continued monitoring and upkeep by the private owner to ensure the safety of the surrounding community and water resources.
Year Completed |
1989 |
Dam Length |
1100 |
Dam Height |
30 |
River Or Stream |
BEE BRANCH |
Primary Dam Type |
Earth |
Surface Area |
15.3 |
Hydraulic Height |
30 |
Drainage Area |
0.39 |
Nid Storage |
250 |
Structural Height |
30 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Brazos Rv Nr Highbank
|
213cfs |
Little Brazos Rv At Fm 485 Nr Hearne
|
564cfs |
Little Pond Ck Nr Burlington
|
0cfs |
Big Elm Ck At Sh 77 Nr Cameron
|
940cfs |
Navasota Rv Nr Easterly
|
22cfs |
Little Rv At Cameron
|
165cfs |
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.
Calvert Mine Spc 5 Dam