Dam 18

Dam 18 was raised in 2011 to pass the 100% Probable Maximum Flood (PMF).

Dam Dimensions

Type of Dimension Measurement
Location 7 miles east of Round Rock
Height 35 feet
Length 2,400 feet
Normal Pool Elevation
659.83 feet above mean sea level
Auxiliary Spillway Elevation
671.24 feet above mean sea level
Top of Dam Elevation
679.56 feet above mean sea level (effective)
Normal Storage Capacity
166 acre-feet

Dam 18 Construction Projects

Project Status Contract
Start Date
Completion Date
Contractor
Dam 18
Complete $376,740
December 2010
June 2011
Patin Construction, LLC