before coming to an interchange with 23rd Street and 22nd Street and the Benjamin Franklin Parkway that has access to the Philadelphia Museum of Art and the Franklin Institute science museum. From this point, the Vine Street Expressway enters a depressed road cut and passes under several streets, running along the northern edge of Center City Philadelphia. Vine Street serves as a street-level frontage road to the freeway. Within this alignment, there is an exit for PA 611 (Broad Street). After passing under 10th Street in Chinatown, the last street the depressed alignment passes under, the highway rises up and reaches a split between the Vine Street Expressway, which continues to I-95, and I-676/US 30. At this split, there is also an eastbound exit and westbound entrance for 8th Street. After exiting the Vine Street Expressway, eastbound I-676/US 30 has a brief at-grade portion along southbound 6th Street to the Benjamin Franklin Bridge approach, an example of a non–limited access section of Interstate Highway. Westbound I-676/US 30 has a ramp from the bridge to the Vine Street Expressway that intersects 7th Street and 8th Street at-grade. From this point, I-676/US 30 crosses over I-95, Christopher Columbus Boulevard, and then the Delaware River into New Jersey on the seven-lane Benjamin Franklin Bridge, which also carries pedestrians and the PATCO Speedline. This bridge and its approaches are maintained by the Delaware River Port Authority. History The path of the Lincoln Highway was first laid out in September 1913; it was defined to run through Canton, Ohio; Beaver; Pittsburgh; Greensburg; Ligonier; Bedford; Chambersburg; Gettysburg; York; Lancaster; and Philadelphia, Pennsylvania; and Camden, New Jersey. This bypassed Harrisburg to the south, and thus did not use the older main route across the state between Chambersburg and Lancaster. From Pittsburgh to Philadelphia, this incorporated a number of old turnpikes, some of which still collected tolls: Part of the Harrisburg and Pittsburgh Turnpike, chartered in 1806, broken up in 1814 into separate turnpike companies, of which the following were included: Greensburg and Pittsburgh Turnpike, Pittsburgh to Greensburg Somerset and Greensburg Turnpike (renamed the Stoystown and Greensburg Turnpike 1815), Greensburg to Stoystown Bedford and Somerset Turnpike (renamed the Bedford and Stoystown Turnpike 1815), Stoystown to Bedford Chambersburg and Bedford Turnpike, Bedford to Chambersburg Chambersburg Turnpike, Chambersburg to Cashtown Part of the Gettysburg and Petersburg Turnpike, from Cashtown to Gettysburg York and Gettysburg Turnpike, Gettysburg to York Wrightsville Turnpike,