Throckmorton
Soil and Water Conservation District
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Lake ThrockmortonThe original Lake Throckmorton was constructed in September of 1918 to provide a water supply for the city of Throckmorton. The dam was raised in 1940 to increase the lakes storage capacity. In 1954 a sedimentation survey was made by the Soil Conservation Service to determine the original and present capacity of the lake. In that survey the lake had a surface area of 139 acres and had an original capacity of 1,947 acre feet of storage at spillway elevation. In 1954 the capacity had been reduced to 1,829 acre feed of storage from sedimentation. Maximum water depth was originally 26.4 feed in 1918 and 24.0 feet in 1954. In the survey that was done by the Natural Resources Conservation Service on July7, 2000 the storage capacity was found to be 1,584 acre feet and a maximum depth of 21.0 feet. At that time the lake level was 12.4 feet below the emergency spillway elevation and was at 16.7% capacity. The lake level has been monitored monthly to determine evaporation rates and use. The chart below shows the data collected. Article and chart by: Gerald Voss
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