Tappan Zee

Tappan Zee Bridge goes out with a bang

Explosive charges cut supports on the old Tappan Zee Bridge to drop the structure into the Hudson River Jan. 15, 2018. NY State Thruway Authority photo.

The eastern anchor span of New York’s Tappan Zee Bridge dropped into the Hudson River Tuesday with an explosive demolition, soon to clear the way for mariners to navigate without restrictions.

The controlled drop was executed at 10:52 a.m., when charges blew out the supports and the 672’ bridge deck and superstructure fell to the river bed, on the eastern side of the navigation channel.

Steel netting set out on the bottom beforehand will enable a complete cleanup, as remains of the bridge in...

https://www.workboat.com/news/coastal-inland-waterways/tappan-zee-bridge-goes-out-with-a-bang/

Explosive end for old Tappan Zee Bridge

The eastern anchor span of the old Tappan Zee Bridge, left, is to be brought down with explosive charges Jan. 12. New York State Thruway Authority photo.

The main channel in New York’s Hudson River will be closed to traffic Saturday morning while the remaining eastern span of the old Tappan Zee Bridge is demolished with explosive charges, Coast Guard and state transportation officials say.

Tappan Zee Constructors has been dismantling the 63-year-old bridge since completing the 3.1-mile, $4 billion Mario M. Cuomo bridge last year, shipping out the old steel and concrete for recycling or emplacement on artificial fishing reefs off Long Island.

But...

https://www.workboat.com/news/coastal-inland-waterways/explosive-end-for-old-tappan-zee-bridge/