point, the roadway widens to six lanes and runs near wooded suburban areas, passing over the Morristown and Erie Railway's Whippany Line before reaching CR 527 at another cloverleaf interchange. Past CR 527, I-280 makes a turn to the east before heading southeast into Livingston and intersecting CR 634. Following this exit, the road enters West Orange and passes through Second Watchung Mountain in a cut. Past the mountain, the road heads back into suburban areas and comes to the exit for CR 636, where the highway widens to eight lanes here and heads east to an interchange with CR 577. After CR 577, I-280 makes a sharp turn to the south and goes through First Watchung Mountain in another cut, resuming into suburbs again and heading south-southeast as it comes interchanges at CR 660 and CR 508 Spur. The terrain becomes urban soon after exit 10, when it enters Orange. Here, I-280 narrows back to six lanes and heads onto a depressed alignment with frequent overpasses, running a short distance to the south of NJ Transit's Morristown Line. Along this portion, the roadway has ramps to Essex Avenue, Day Street, and Center Street. Continuing into East Orange, the freeway passes under more streets as it runs next to the Morristown Line, passing south of Brick Church station and interchanging with Harrison and Clinton streets. Near East Orange station, I-280 comes to a full interchange with the Garden State Parkway, which also has access to CR 509 and Oraton Parkway. Following this junction, the highway widens to eight lanes before becoming 10 lanes at the border with Newark. After crossing under more city streets, the roadway comes to exit 13, a left-side exit and entrance to and from the west accessing 1st Street and a ramp from the east to Orange Street. At this point, the total number of lanes on the road decreases from 10 to four and I-280 eastbound heads up and over the exit 13 ramps, rejoining the westbound lanes on a bridge over 1st Street, Orange Street, and NJ Transit's Newark Light Rail line. As the road returns to surface level and begins to parallel NJ Transit's Morris & Essex Lines and Montclair-Boonton Line to the north, an unused bridge carries the western end of the 1954 section of freeway over the railroad to Orange Street east of Duryea Street. After this, I-280 passes under Clifton