Rock Drilling

3ft. to 8ft. Diameter

100 ft. to 130ft. Deep

Used two large vibro hammers on 4100 Manitowoc to drive casing through sands and silts from 100-130ft. deep. Two twin diesel drill attachments and a soilmec 625 drill rig were used to socket the shafts into 60,000 PSF hardpan.