La Perla Ranch Lake No 1 Dam Reservoir Report
Last Updated: December 5, 2025
La Perla Ranch Lake No 1 Dam, located in Zapata, Texas, was completed in 1977 and stands at a height of 22 feet with a length of 850 feet.
°F
°F
mph
Wind
%
Humidity
Summary
This private-owned Earth dam, built on TR-Dolores Creek, serves a primary purpose of "Other" and has a storage capacity of 352 acre-feet. The dam lacks a spillway, raising concerns about potential hazards and the need for risk assessment and management measures.
Despite being state-permitted and inspected, the dam's condition remains unrated, posing a high risk (2) due to its lack of emergency action plan and inundation maps. The dam's foundation, structure, and hydraulic height are all at 22 feet, with a normal storage capacity of 144 acre-feet. With no associated structures and limited drainage area, the dam is at risk of failure without proper maintenance and enforcement measures in place. Water resource and climate enthusiasts should monitor this dam closely for any updates on its condition and potential risks to the surrounding area.
Year Completed |
1977 |
Dam Length |
850 |
Dam Height |
22 |
River Or Stream |
TR-DOLORES CREEK |
Primary Dam Type |
Earth |
Surface Area |
20 |
Hydraulic Height |
22 |
Nid Storage |
352 |
Structural Height |
22 |
Outlet Gates |
None - 1 |
Hazard Potential |
Not Available |
Foundations |
Unlisted/Unknown |
Nid Height |
22 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Rio Grande At Laredo
|
1760cfs |
Zacate Ck At Laredo
|
0cfs |
San Casimiro Ck Nr Freer
|
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.
La Perla Ranch Lake No 1 Dam