Drilled Shaft Defects: Construction

36 in. augured hole to approximately 20 feet
40-Inch OD temporary casing inserted into augured hole
Remainder augured to 47 feet without casing or slurry
Holes remained open for several hours
Full length Reinforcement inserted into hole
Concrete placed using free fall and tremie techniques
3 ft. section of casing used to form the shaft above grade