Explosive demolition drops bridge span into Hudson River.
Within the past few minutes, the Eastern span of the old Tappan Zee bridge has been demolished by a controlled explosion.
Original plans called for the Tappan Zee to be removed piece by piece and avoid the use of explosives, which could have an impact on Hudson River fish habitats. Environmental experts, however, determined the old bridge was structurally unsound, preventing workers from continuing the piecemeal takedown.
