Eagle Mountain Dam and Lake (Trinity River Basin)
Eagle Mountain Dam and Lake (formerly Eagle Mountain Reservoir) are located about 5 miles northwest of Fort Worth, on the West Fork Trinity River just north of Lake Worth in northwestern Tarrant County. It is owned and operated by the Tarrant Regional Water District for water supply, irrigation, flood control and recreational purposes. Permit for constructing the dam was authorized by State Board of Water Engineers on May 1, 1928. Construction of the dam began on January 23, 1930, and was completed October 24, 1932.
Deliberate impoundment of water began on February 28, 1934. The dam is 85 feet high and 4,800 feet wide, with an original spillway width of 1,300 feet. The crest of the service spillway is at 649.1 feet above mean sea level. The reservoir has a normal capacity of 179,880 acre-feet and a surface area of 8,694 acres. On July 31, 1971, construction on a new spillway was completed by adding a new concrete side channel ogee to control the discharge through a 25 feet square conduit. The drainage area of the West Fork of the Trinity River at Eagle Mountain Dam is 1,970 square miles.