PROBLEM: When Carnegie Hall, in Manhattan, wanted to build a new concert center beneath the existing concert hall, tons of solid rock and rubble needed to be excavated and removed. All of the rubble excavated was collected with front loaders from under the building.
SOLUTION: Have Stokes Industries Co. LTD design and build TWO large heavy duty lifts to raise the front loaders with the excavated rock to street level where the material could be placed in dump trucks for removal. The first hydraulic lift was installed at street level adjacent to the sidewalk and the underground subway line. Once the excavation exceeded 20 feet a 2nd hydraulic lift was installed, to work in conjunction with the 1st lift, so the excavation could continue.
Stokes Industries designed, engineered, fabricated and installed both lifts.