Laguna Atascosa Crossing #1 Dam Reservoir Report
Last Updated: December 5, 2025
Laguna Atascosa Crossing #1 Dam is a Federal-owned structure located in Cameron, Texas, along the Cayo Atascosa stream.
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Summary
Built in 1952 by the Fish and Wildlife Service, this Earth-type dam stands at a height of 8 feet and spans 800 feet in length. Its primary purpose is to serve as a Fish and Wildlife Pond, providing valuable habitat for local wildlife.
Despite its low hazard potential, the dam is considered to be in poor condition as of the last inspection in 2016. With a very high risk rating, the dam poses a potential threat that necessitates regular inspection and maintenance. The surrounding area boasts a maximum storage capacity of 34,579 acre-feet, offering important water resources for the region's ecosystem.
As a crucial component of water resource management in the area, Laguna Atascosa Crossing #1 Dam serves as a key structure for maintaining ecological balance and providing essential habitat for wildlife. With its controlled spillway and vertical lift outlet gates, this dam plays a vital role in supporting the diverse ecosystem of the Cayo Atascosa stream and surrounding areas, making it an essential site for water resource and climate enthusiasts to monitor and protect.
Years Modified |
1951 - Other, 1954 - Other, 1971 - Other, 1976 - Hydraulic, 2009 - Structural |
Year Completed |
1952 |
Dam Length |
800 |
Dam Height |
8 |
River Or Stream |
Cayo Atascosa |
Primary Dam Type |
Earth |
Surface Area |
3456 |
Hydraulic Height |
8 |
Drainage Area |
94 |
Nid Storage |
34579 |
Structural Height |
8 |
Outlet Gates |
Vertical Lift |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
8 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Laguna Atascosa Crossing #1 Dam