One of the capabilities that distinguish Sheedy from its competitors is the hoisting of material and equipment to the top of high-rise buildings that are beyond the reach of conventional cranes. This is accomplished through the use of guy derricks, Chicago booms, and roof mount cranes; a segment of the crane industry that requires special knowledge, experience and skill sets to ensure safe installation and operation.

When the high-rise at 345 California Street was originally erected, Sheedy’s 50-ton roof mount crane was used to hoist building materials atop the 48-story structure in downtown San Francisco. 25 years later, Sheedy came back again to replace the twin flagpoles that had been damaged through the years by wind and rain. A 7-ton capacity guy derrick was carried up internal elevators to the roof where our experienced rigging crews assembled it by hand. The derrick was then used to hoist the 50-ton roof mount crane in pieces where it was then used to replace the flagpoles and provide a work platform for other work to be performed. The crane is shown here configured with 100’ main boom and 45’ jib.