Shahan Gss Reservoir Report
Last Updated: December 5, 2025
Shahan Gss, located in Montague, Texas, is a privately owned earth dam designed by the USDA NRCS and completed in 1979.
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Summary
This dam on the TR-DRY VALLEY CREEK stands at a height of 30 feet and has a storage capacity of 43 acre-feet, serving a primary purpose that is classified as 'Other'. While the dam has not been rated for its condition assessment, it is considered to have a high risk level (2) due to its hazard potential, although specific risk management measures are not listed.
The Shahan Gss dam does not have a spillway and is not regulated by the state, with no enforcement or regulatory agency listed. Despite its high risk level, the dam has not been inspected recently, and emergency action plans and inundation maps have not been prepared. With a single outlet gate and no associated structures, this dam poses potential challenges for water resource and climate enthusiasts who may be concerned about the lack of comprehensive risk assessment and emergency preparedness measures in place for this critical infrastructure.
Year Completed |
1979 |
Dam Length |
326 |
Dam Height |
30 |
River Or Stream |
TR-DRY VALLEY CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
30 |
Nid Storage |
43 |
Structural Height |
30 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
30 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Belknap Ck Nr Ringgold
|
112cfs |
Beaver Ck Nr Ringgold
|
145cfs |
Elm Fk Trinity Rv At Fm 1198 Nr Myra
|
1cfs |
Red Rv Nr Terral
|
200cfs |
Big Sandy Ck Nr Bridgeport
|
8cfs |
E Fk Little Wichita Rv Nr Henrietta
|
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.
Shahan Gss