Holland Dam Site B Reservoir Report
Last Updated: December 6, 2025
Holland Dam Site B, located in La Salle, Texas, along the Nueces River, is a vital water resource infrastructure for irrigation purposes.
°F
°F
mph
Wind
%
Humidity
Summary
Completed in 1938, this buttress dam stands at a height of 18 feet and has a storage capacity of 180 acre-feet. Despite its age, the dam is still regulated, inspected, and enforced by the Texas Commission on Environmental Quality (TCEQ), ensuring its structural integrity and safety.
With a hazard potential labeled as "Not Available" and a risk assessment rating of "High (2)", Holland Dam Site B is closely monitored for any potential risks or issues. Though it lacks a spillway, the dam has been equipped with one outlet gate for controlled water release. The condition of the dam is currently not rated, but it is reassuring to see that emergency action plans and guidelines are in place for any unforeseen circumstances. The presence of Congressman Will Hurd (R) representing the area adds another layer of oversight to this important water infrastructure.
Overall, Holland Dam Site B serves as a crucial component in the water management system of the region, providing essential irrigation water for agricultural purposes. Its historical significance, combined with ongoing regulatory oversight, ensures the continued functionality and safety of this important water resource infrastructure along the Nueces River. For water resource and climate enthusiasts, Holland Dam Site B presents a fascinating case study in the intersection of history, engineering, and environmental stewardship.
Year Completed |
1938 |
Dam Length |
100 |
Dam Height |
18 |
River Or Stream |
NUECES RIVER |
Primary Dam Type |
Buttress |
Hydraulic Height |
18 |
Nid Storage |
180 |
Structural Height |
18 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Nueces Rv At Cotulla
|
0cfs |
San Casimiro Ck Nr Freer
|
0cfs |
Frio Rv Nr Derby
|
0cfs |
Nueces Rv Nr Tilden
|
0cfs |
Nueces Rv Nr Asherton
|
0cfs |
Frio Rv At Tilden
|
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.
Holland Dam Site B