The Percha Diversion Dam is a structure built in 1918 on the Rio Grande in New Mexico, United States.

Percha Diversion Dam was completed on the Rio Grande in 1918, 21 miles south of Truth or Consequences, New Mexico.

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] 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.