Falcon Dam

Falcon Dam is a concrete dam located in Starr County, Texas, built in 1953. It carries a High hazard potential classification and has a fair condition assessment.

About Falcon Dam

The primary purpose of Falcon Dam is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by International Boundary And Water Commission;mexico Comision Internacional De Limites Y Aguas (federal). It impounds the Rio Grande near Roma.

The dam stands 175 feet tall and stretches 26,294 feet across, creates a reservoir covering 115,400 acres, has a maximum storage capacity of 3,177,000 acre-feet, and collects water from a drainage area of 159,270 square miles. Completed in 1953, the structure is well into its service life at over 50 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 02/02/2024.

At 175 feet, this dam is taller than 99% of all dams in the United States.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Texas dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateTexas
CountyStarr
Nearest CityRoma
River/StreamRio Grande
Coordinates26.55900, -99.16700

Physical Characteristics

Dam TypeConcrete
NID Height175 ft
Dam Height150 ft
Dam Length26,294 ft
Year Completed1953 (73 years old)

Storage & Hydraulics

NID Storage3,177,000 acre-ft
Max Storage3,177,000 acre-ft
Normal Storage2,668,000 acre-ft
Surface Area115,400 acres
Drainage Area159,270 sq mi
Max Discharge456,000 cfs
Spillway TypeControlled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerInternational Boundary and Water Commission;Mexico Comision Internacional de Limites y Aguas
Owner TypeFederal
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection02/02/2024
Emergency Action PlanYes

Identifiers

NID IDTX00024
Federal IDTX00024
More InfoState Dam Safety Program

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