Underwood Dam Reservoir Report
Nearby: Herbert Cryar Dam Frazier Lake Dam
Last Updated: March 14, 2026
Underwood Dam, located in Liberty, Texas, was completed in 1978 by the USDA NRCS and serves multiple purposes including fire protection, stock, small fish pond, and recreation.
Summary
This private earth dam stands at 30 feet high and spans 254 feet in length, providing a storage capacity of 104 acre-feet. The dam, situated on TR-Spring Creek, plays a crucial role in managing water resources in the area.
Despite not having a spillway, the dam has not been rated for condition assessment and has a high hazard potential. With no inspection frequency specified, the risk assessment for Underwood Dam is marked as 'High (2)'. While it is not regulated by the state, the dam is permitted and inspected by Texas authorities. With its strategic location and importance for various water-related activities, Underwood Dam is a significant structure for water resource and climate enthusiasts to monitor and study in the region.
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Wind
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Humidity
15-Day Weather Outlook
Year Completed |
1978 |
Dam Length |
254 |
Dam Height |
30 |
River Or Stream |
TR-SPRING CREEK |
Primary Dam Type |
Earth |
Drainage Area |
105 |
Nid Storage |
104 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
30 |
Seasonal Comparison
5-Day Hourly Forecast Detail
Nearby Streamflow Levels
Navasota Rv Nr Easterly
|
27cfs |
Navasota Rv At Old Spanish Rd Nr Bryan
|
92cfs |
Big Ck Nr Freestone
|
21cfs |
Trinity Rv Nr Crockett
|
5290cfs |
Upper Keechi Ck Nr Oakwood
|
33cfs |
Bedias Ck Nr Madisonville
|
712cfs |
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.
Underwood Dam