Main Span of Old Tappan Zee Bridge Lowered

Real Estate In-Depth | May 15, 2018

TARRYTOWN The demolition of the now retired Tappan Zee Bridge reached a major milestone earlier this month with the lowering of the 532-foot center span onto a barge in the Hudson River.

Gov. Andrew Cuomo and other dignitaries watched the span lowering from a boat during a media tour on May 8 of the construction of the $.3.9-billion new Governor Mario M. Cuomo Bridge. The dismantling of the Tappan Zee Bridge began late last year and the lowering of the center span is part of the bridge replacement process.

The 2,415-foot main span of the Tappan Zee Bridge will be removed in five separate operations, the first of which began overnight May 7. Eight hydraulic strand jacks lowered the 4,750-ton suspended center span onto a barge that was transported offsite for further disassembly.

The four other operations are scheduled to take place in the coming months. Barge-based cranes will remove two cantilever truss sections, while the two anchor spans will be lowered onto barges with the assistance of strand jacks. After the main span dismantling, the “I Lift NY” floating super crane will assist with the removal of the main span’s steel support structures. The main span removal operation is expected to be complete by late fall.

Tappan Zee Constructors has demolished the landings of the old bridge, which occupied the same footprint of the new eastbound span. The contractor recently connected the eastbound span to its Westchester landing and is working to link it to its Rockland landing. Once complete, drivers will reap the full benefits of the new twin-span, including: eight general traffic lanes; four breakdown and emergency lanes; dedicated bus lanes and space for commuter rail; and a bicycle and walking path.

Some of the old panels of the Tappan Zee Bridge are being put to good use. On May 7, Orange County Executive Steve Neuhaus announced that Orange County would be the first county in New York State to receive panels salvaged from the Tappan Zee Bridge for repurposing.

The New York State Thruway Authority was scheduled to deliver 14 of the 150 panels to Orange County’s Transfer Station, located on Route 17M in New Hampton, starting on Monday, May 14th. Each panel is worth approximately $55,000. The rest of the panels will be distributed throughout the state.

“Utilizing these panels from the Tappan Zee Bridge will save our taxpayers approximately $770,000,” Orange County Executive Neuhaus said. “This is an exciting opportunity for the county and I’m grateful that our Department of Public Works has taken the initiative to recycle these panels. We will continue to look for opportunities to enhance our infrastructure in a fiscally responsible manner.”

The panels will be used to build four highway bridges and two rail to trail bridges. The concrete and steel panels are approximately 13 feet by 50 feet, 8.5 inches thick and weigh 50 tons each. The Corwin Bridge in the Town of Mount Hope will be the first bridge built with the Tappan Zee panels. Construction is set to begin in late summer and will last approximately three months.