Tx No Name No 30 Dam Reservoir Report

Last Updated: December 5, 2025

The Tx No Name No 30 Dam, located in Callahan, Texas, is a privately owned structure designed by USDA NRCS for fire protection, stock, or small fish pond purposes.


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Summary

Completed in 1967, this earth dam stands at a height of 18 feet and has a length of 1350 feet, with a storage capacity of 65 acre-feet. Situated on the TR-Cottonwood Creek, the dam serves as a crucial resource for water management in the area.

Despite its age, the dam has not been rated for its condition assessment and lacks a hazard potential evaluation. However, it is noted to have a high risk rating of 2, emphasizing the importance of regular inspections and maintenance to ensure its structural integrity. With no spillway and limited outlet gates, the dam presents challenges for managing water discharge during heavy rainfall events. Water resource and climate enthusiasts should keep an eye on the Tx No Name No 30 Dam for any updates on its maintenance and risk management measures to protect the surrounding community and environment.

Year Completed

1967

Dam Length

1350

Dam Height

18

River Or Stream

TR-COTTONWOOD CREEK

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

18

Nid Storage

65

Structural Height

18

Outlet Gates

None - 1

Hazard Potential

Not Available

Foundations

Unlisted/Unknown

Nid Height

18
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.