The Percha Diversion Dam is a structure built in 1918 on the Rio Grande in New Mexico, United States. It diverts water from the Rio Grande into the Rincon Valley Main Canal, an irrigation canal.

Percha Diversion Dam
Country	United States
Location	Sierra County, New Mexico
Purpose	Irrigation
Opening date	1918
Owner(s)	United States Bureau of Reclamation
Dam and spillways
Type of dam	Diversion dam
Percha Diversion Dam
U.S. National Register of Historic Places
N.M. State Register of Cultural Properties
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Nearest city	Arrey, New Mexico
Coordinates	32°52′6″N 107°18′11″W
Area	3 acres (1.2 ha)
Built	1916 (1916)
Architect	L.M. Lawson
Architectural style	Ogee Weir
NRHP reference No.	79001555[1]
NMSRCP No.	570
Significant dates
Added to NRHP	April 6, 1979
Designated NMSRCP	January 20, 1978

Location

Percha Diversion Dam was completed on the Rio Grande in 1918, 21 miles south of Truth or Consequences, New Mexico. It is two miles downstream from Caballo Dam, which was built in 1938. It is listed on the National Register of Historic Places. The dam is accessible within the 80 acres (32 ha) Percha Dam State Park, which is considered one of the top five bird-watching sites in New Mexico.[2]

Structure

The dam is a reinforced concrete weir, 350 feet (110 m) long and 18.5 feet (5.6 m) tall. When the embankment wings are included the crest is 2,720 feet (830 m) long. The dam includes eight Tainter gates that lift the level of the river 6 feet (1.8 m) above its normal elevation so it can be diverted into the canal.[2]

Downstream canal

Percha Diversion Dam diverts the stored water into the 27.1 miles (43.6 km) long Rincon Valley Main Canal, which carries water to irrigate lands in the Rincon Valley between Truth or Consequences and Las Cruces, New Mexico. The Rincon canal crosses over the Rio Grande in the Garfield Flume, and under the river in the Hatch and Rincon siphons.[2]

See also

• National Register of Historic Places listings in Sierra County, New Mexico

References