Constructed for irrigation and electrical power purposes during 1934-36, Red Bluff Dam is located on the Pecos River 8 miles south of the Texas-New Mexico state line. It impounds an 11,700-acre lake occupying parts of Reeves and Loving Counties, Texas, and Eddy County, New Mexico. Floods first filled the reservoir in June 1937. Capacity is 310,000 acre feet of water. The main embankment, 9,230 feet long, rises 105 feet above the stream bed at its highest point, and the dam has a top width of 25 feet. These waters irrigate about 140,000 acres extending for 100 miles along the Pecos River.