Coleman Lake (Colorado River Basin)
Coleman Lake (also known as Coleman Reservoir) is located about fourteen miles north of Coleman in Coleman County, on Jim Ned Creek, a tributary of the Pecan Bayou which is a tributary of the Colorado River. The lake is owned and operated by the City of Coleman for municipal water supply and recreational purposes. Authorization (Water Right Permit No. 1924) of this reservoir was issued by the State Board of Water Engineers on May 12, 1959. Construction of dam started in August 1965 and was completed by the general contractor, R. N. Adams Construction Company on May 10, 1966. Deliberate impoundment began in April 1966. The dam is an earthfill embankment of 3,200 feet long with a maximum height of 90 feet. The top of the dame is at elevation of 1,740.0 feet above mean sea level. The uncontrolled emergence spillway bears an elevation of 1,726.0 feet above mean sea level at its crest. The 28-foot drop inlet service spillway is uncontrolled too and has an elevation of 1717.5 feet above mean sea level at its crest. According to TWDB 2006 survey, the reservoir has a capacity of 38.094 acre-feet encompassing a surface area of 1,811 acres at the conservation pool elevation of 1,717.5 feet above mean sea level. The drainage area above the dam is 292 square miles.