JERSEY CITY - (AP) - Motorists who use the Pulaski Skyway will need to find alternate routes starting this weekend.

The 83-year-old span will be closed in both directions over the course of eight weekends this spring.

Beginning at 9 p.m. Friday through 5 a.m. Monday, contractors will begin to remove and install floor beams. New deck panels also will be added to the north side.

The work is scheduled to take place on weekends through the end of May.

Detours will be posted.

The state Transportation Department says the $1 billion Pulaski Skyway project will extend the life of the bridge by 75 years.