Stevenson Crane Service took just one day to erect the first flat top or “topless” tower crane to operate on lakefront. “Twenty years in the construction industry and this is the only tower crane said Curt Slipke, vice president of Stevenson Crane Service. Erecting the crane in such a short time shaved thousands of dollars off the assembly costs, the company claimed, and went on to say that it typically takes two to three full days to erect a standard tower crane.
The crane is a Linden-Comansa LC-400 flat top tower, contracted to Adjustable Forms Corporation for Kenny Construction's Calumet Avenue. It was erected to a hook height of 188 feet with 200 feet of jib, all in a will be jumped to a final hook height of 278 feet. Lifting capacity is almost 14,000 pounds at a radius of 197 feet.