When the final phase of the $320 million federally funded Causeway expansion and rehabilitation project begins later this year, it will start with improvements to the Marsha Drive intersection in Stafford Township to allow for the completion of water/sewer upgrades on Eighth and Ninth streets in Ship Bottom.

A third lane of traffic will be added to Route 72 where it intersects with Marsha Drive, in each direction for a limited distance, according to Steve Schapiro, deputy director of…