NJDOT said crews will shift eastbound traffic overnight on the bridge between East Hanover and Roseland.
Police said eight power poles needed to be replaced and rewired; closures will last until at least Saturday morning.
A water main break on Route 10 in Hanover Township has prompted commuting delays Thursday morning, authorities said.
The incident happened near Passaic Avenue in Fairfield, on westbound I-80. The two right lanes are closed.
Drivers should plan for a long closure Tuesday morning.
Drivers, take note!