Tower cranes perform dam work

摘要

A trio of Potain tower cranes is being used on a hydroelectric dam expansion project in the Pennsylvania. The project is the Holtwood Dam on the Susquehanna River. General contractor is Walsh Construction', which owns two cranes on the job - an MR 615 and an MR 415. The third unit is an MD 485 B rented from All Erection and Crane Rental. Jib length, at between 131- and 145-feet long, will remain throughout the job. -Nick Everson, Walsh project manager for powerhouse construction, Said the cranes are spaced to provide different lifting options. "The construction site is approximately a 150-foot-deep hole, 180-feet-wide and almost 600-feef-long, Everson said, "We arranged the cranes so that any two cranes can reach almost alt areas of the construction site at one time."