page_title: Elephant Butte Reservoir
section_title: History and dam construction
hierarchical_section_title: Elephant Butte Reservoir / History and dam construction
caption_attribution_description: English: NASA Earth Observatory image of Elephant Butte Reservoir by Jesse Allen and Robert Simmon, using Landsat data from the U.S. Geological Survey.
context_page_description: Elephant Butte Reservoir is a reservoir on the Rio Grande in the U.S. state of New Mexico, 5 miles north of Truth or Consequences. This reservoir is the 84th largest man-made lake in the United States, and the largest in New Mexico by total surface area and peak volume. It is the only place in New Mexico where one can find pelicans perched on or alongside the lake. There are also temporary US Coast Guard bases stationed at Elephant Butte. It is impounded by Elephant Butte Dam and is part of the largest state park in New Mexico, Elephant Butte Lake State Park.
  The reservoir is part of the Rio Grande Project, a project to provide power and irrigation to south-central New Mexico and west Texas. It was filled starting between 1915 and 1916.
  The reservoir can hold 2,065,010 acre feet of water from a drainage of 28,900 square miles. It provides irrigation to 178,000 acres of land.
  The name "Elephant Butte" refers to a volcanic core similar to Devils Tower in Wyoming. It is now an island in the lake. The butte was said to have the shape of an elephant lying on its side.
context_section_description: The proposed dam featured in the 1906 Boundary Waters Convention between the United States and Mexico, which specified how much water should be delivered to Mexico following the dam's completion.
  Elephant Butte Dam, constructed between 1911 and 1916, with the reservoir fill started in 1915, was a major engineering feat in its day. The enormous concrete dam is the major feature of the Elephant Butte National Register Historic District. New Mexico State Parks operates a visitor center that contains information on the construction of the dam. It stood as the largest irrigation dam ever built at the time of its construction, only being surpassed in 1970 by the Aswan Dam in Egypt.
  A large construction community sprang up, which included worker camps, railways, water tanks, cableway systems, and the former administration building of the Bureau of Reclamation. The "camps" housed American and Mexican workers throughout the construction of the dam. Many of the former camps ended up under the reservoir itself, while others disappeared altogether.
  The former administration building of the Bureau of Reclamation still stands as a bed and breakfast facility, and, along with other structures of the time, are listed in the National Register of Historic Places. When the lake falls over 10 meters (30 feet) below maximum capacity, the ruins of an old machine shop rise out of the water. Located near the south-east shore, this 3000 square-foot concrete structure was once believed to be the remnants of the old field hospital that served the frequently injured dam construction crew. That building is located further upstream in the aptly named 'Hospital Canyon'. Plans are underway to make the machine shop ruins a scuba destination in years of high water-level.
caption: Elephant Butte Reservoir in 1994
exif: {}