Two 16” HDPE casings containing (4) 4” and (4) 3” stainless pipes in each casing were installed at the Tampa International Airport. The bores extended 400 feet with each casing weighing over 28,000 pounds. The bores were guided through various critical utilities, including the FAA’s fiber optic communications cables. Each bore was terminated on the Aircraft Operational Area. Drilling operations were completed without effecting operation of the area.