The aging span is scheduled for a major makeover that will take two years, beginning this Saturday.
The New Jersey Transportation Department gave a tour Monday to show how parts of the 82-year-old span are rusted and decaying.
The project will require the closure of northbound lanes that feed into Jersey City and the Holland Tunnel. The DOT estimates about 40,000 vehicles use the inbound span each day, including about 10,000 during the morning commute.
They're urging motorists to car-pool, take public transportation or use alternate routes. New Jersey Transit and PATH are adding capacity on some of their trains to handle the anticipated overflow.