Dam 20

Dam 20 was raised to protect up to the 100% Probable Maximum Flood (PMF) in 2007.

Dam Dimensions

Type of Dimension Measurement
Location 7.4 miles east of Round Rock
Height 38 feet
Length 1,020 feet
Normal Pool Elevation
649.37 feet above mean sea level
Auxiliary Spillway Elevation
661.13 feet above mean sea level
Top of Dam Elevation
668.08 feet above mean sea level (effective)
Normal Storage Capacity
85 acre-feet

Dam 20 Construction Projects

Project
Status Contract Start Date
Completion Date
Contractor
Dam 20
Complete $348,100 November 2006
June 2007
MAC