Six span continuous conventional plate girder
structure of the Clifford Hollow in West Virginia.
Access to the jobsite was very poor and did not lend itself
well to conventional erection with cranes. The piers are nearly
85M tall at the bottom of the Hollow. The superstructure was
erected on the approach and incrementally launched into position.
Services
Provided:
• Redesign of superstructure to accommodate erection
means and methods.
• Development and design of erection scheme and equipment
for erection of the structure by incrementally launching.