Dam 12

Dam 12 was raised to protect up to the 100% Probable Maximum Flood (PMF) in two phases, with projects in 2005 and 2006.

Dam Dimensions

Type of Dimension Measurement
Location Within City limits of Round Rock, northwest quadrant
Height 33 feet
5,000 feet
Normal Pool Elevation
768.31 feet above mean sea level
Auxiliary Spillway Elevation
782.29 feet above mean sea level
Top of Dam Elevation
789.76 feet above mean sea level (effective)
Normal Storage Capacity
81 acre-feet

Dam 12 Construction Projects

Project Status Contract Start Date
Completion Date
Dam 12
Complete $552,698 December 2004
August 2005