Greenbelt Lake (Red River Basin)
Greenbelt Lake, also known as Greenbelt Reservoir, is located approximately four miles north of Clarendon in Donley County, Texas on the Salt Fork, a tributary of the Red River. Other smaller creeks, including Kelly Creek, also supply to the reservoir. Water right permit No. 1917 was initially granted to the Greenbelt Municipal and Industrial Water Authority and the Texas Water Development Board for the construction of the dam and reservoir in August 11, 1958 and was amended (No. 1917B) on November 6, 1964.
Designed by Freese, Nichols and Endress, construction of the dam started on April 12, 1966 and was completed on March 12, 1968 by Adams Construction Co. Deliberate impoundment of water started on December 5, 1966. The reservoir is currently owned by the Greenbelt Municipal and Industrial Water Authority and is used for municipal, industrial and mining water supply. The dam is a compacted-earth structure 5,800 feet long with a maximum height of 110 feet with top of the dam at elevation 2,686.0 feet above mean sea level. The emergency spillway is located at the left end of the dam with a crest length of 1,500 feet at elevation 2,674.0 feet above mean sea level. The service spillway is uncontrolled drop inlet with a crest at elevation of 2,664 feet above mean sea level. According to data from TWDB Report 126, the lake has a storage capacity of 59,800 acre-feet encompassing a surface area of 1,990 acres, at its conservation pool elevation, 2,664 feet above mean sea level.