1,200 Ton Capacity Hydraulically Adjustable Lifting Frame
Project: Tappan Zee Bridge, Nyack/Tarrytown, NY
Client: Tappan Zee Constructors

Zieman Engineering designed this lifting frame for setting 134 girder assemblies weighing up to 2,400 kips.
The frame was hydraulically adjustable to allow for varying girder slope, superelevation and C.G. locations.