 After the one-way pair, CR 510 heads east on four-lane undivided Columbia Turnpike past business parks and residential neighborhoods in Morris Township, eventually gaining a third eastbound lane.The route becomes a four-lane divided highway as it crosses CR 623 and enters Hanover Township as it comes to a cloverleaf interchange with the Route 24 freeway.Following this, the road continues into Florham Park as a four-lane undivided road as it passes to the south of Morristown Municipal Airport and runs through woods and meadows.