 The dam includes eight Tainter gates that lift the level of the river above its normal elevation so it can be diverted into the canal.Percha Diversion Dam diverts the stored water into the 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.