Amistad Dam

Amistad Dam
Amistad Dam
CountryUnited States / Mexico
LocationVal Verde County, Texas / Acuña Municipality, Coahuila
Coordinates29°27′01″N 101°03′28″W / 29.45028°N 101.05778°W / 29.45028; -101.05778
StatusIn use
Construction began1963
Opening date1969 (1969)
Construction costUS$125 million ($808 million in 2014)
Owner(s)International Boundary and Water Commission
Dam and spillways
Type of damEarthfill
ImpoundsRio Grande
Height254 ft (77 m)
Length32,022 ft (9,760 m)
Dam volume17,055,000 cu yd (13,039,000 m3)
Spillway typeOgee crest, 16 tainter gates
Spillway capacity1,507,000 cu ft/s (42,700 m3/s)
Reservoir
CreatesAmistad Reservoir
Total capacity5,658,600 acre⋅ft (6.9798 km3)
Surface area64,900 acres (26,300 ha)
Power Station
Hydraulic head234 ft (71 m)
Turbines4x Francis
Installed capacity132 MW

Amistad Dam (Spanish: Presa la Amistad) is a major embankment dam across the Rio Grande between Texas, United States, and Coahuila, Mexico. Built to provide irrigation water storage, flood control, and hydropower generation, it is the largest dam along the international boundary reach of the Rio Grande.[1] The dam is over 6 miles (9.7 km) long, lies mostly on the Mexican side of the border, and forms Amistad Reservoir.[2] It supplies water for irrigation in the Rio Grande Valley, 574 miles (924 km) upstream of the Rio Grande's mouth on the Gulf of Mexico at Brownsville, Texas/Matamoros, Tamaulipas.[3]

The dam is owned and operated by the International Boundary and Water Commission (IBWC), and also facilitates the Amistad Dam Port of Entry. Amistad is derived from the Spanish word for "friendship", representing the two nations' cooperation on the dam.[4]

  1. ^ "Amistad Project Office". Archived from the original on 2016-04-03. Retrieved 2016-04-05.
  2. ^ "Amistad Dam and Powerplants". CRSP Management Center. Western Area Power Administration. Archived from the original on 2011-07-21. Retrieved 2011-01-25.
  3. ^ Cite error: The named reference facts was invoked but never defined (see the help page).
  4. ^ San Antonio. Rowman & Littlefield. ISBN 9780762752119.