Burlington to Camden 230 kV Conversion Project New Jersey As part of a 230kV conversion project, seventeen foundations were required to support new towers at four existing sub/ switching stations. Thirteen of the drilled shaft foundations ranged in diameter from 10’ to 12’ and were approximately 47’ deep each. The remaining foundation consisted of four 8’ diameter shafts under a 44’ x 44’ x 5’ square pad with a 12’ diameter pedestal exten

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