Pennsylvania Route 320
|Maintained by PennDOT and Lower Merion Township|
|Length:||18.832 mi (30.307 km)|
|South end:||PA 291 in Chester|
| US 13 in Chester
I-95 in Chester
US 1 in Springfield
US 30 in Villanova
I-76 near West Conshohocken
|North end:||PA 23 in Upper Merion Township|
Pennsylvania Route 320 (PA 320) is a north–south state highway in southeastern Pennsylvania. The southern terminus of the 19-mile (31 km) long route is at PA 291 in Chester. The northern terminus is at PA 23 in Gladwyne.
Before the construction of the toll-free southern portion of Interstate 476 (the "Blue Route"), PA 320 was one of the most heavily traveled north–south routes across Delaware County and served as one of the most common feeder routes southward towards Interstate 95 and northward towards Interstate 76. The opening of the Blue Route has alleviated some congestion on PA 320.
PA 320 follows the Blue Route for much of its length — in fact, the Blue Route passes over or under PA 320 four times: near Swarthmore, at the intersection of Sproul Road and Springfield Road near the Springfield Township/Marple Township border, at the Sproul Road/Conestoga Road intersection in Radnor Township, and near Matsonford Road in Upper Merion township. While the Blue Route has no direct interchange with the road, many of its exits are located short distances from intersections with PA 320.
The southern terminus of PA 320 is at 4th Street (Pennsylvania Route 291) in the City of Chester, Pennsylvania. At this point, PA 320 follows the one-way pair of Madison Street northbound and Upland Street southbound, one block to the east. PA 320 crosses US 13 before coming to an interchange with Interstate 95 a block east of PA 352. Past this interchange, southbound PA 320 becomes discontinuous. After the gap, both directions of PA 320 continue north on two-way Providence Avenue. PA 320 follows Providence Avenue northward out of the city of Chester, becoming Providence Road, and continues up to the junction of Providence Road and Chester Road. At that junction, PA 320 continues northeastward along Chester Road, while Providence Road continues northwest as Pennsylvania Route 252.
PA 320 continues variously northeastward and northward along Chester Road through the borough of Swarthmore, Pennsylvania, passing the Swarthmore train station and bisecting the campus of Swarthmore College. North of Swarthmore College, PA 320 turns left along Swarthmore Avenue for one block, then right again along Cedar Lane until its junction with Baltimore Pike near Springfield Mall. At this point, PA 320 takes the name Sproul Road and retains this name through various turns at intersections. It continues northward across Baltimore Pike through Springfield Township, passing Springfield Hospital and the Springfield Golf and Country Club, and intersects the northern terminus of Pennsylvania Route 420 (Woodland Avenue). It then intersects U.S. 1 (State Road) at a diamond interchange near the Marple Crossroads Shopping Center, then passes northward into Marple Township.
After crossing over Interstate 476, PA 320 merges with Springfield Road and continues northward, still signed as Sproul Road, past Cardinal O'Hara High School and Lawrence Park Shopping Center. In Broomall, a community in Marple Township, PA 320 turns right at the Marple Public Library and continues northeastward across West Chester Pike (Pennsylvania Route 3), then turns left at the Marple Presbyterian Church at the western terminus of Marple Road. PA 320 continues northward through a corner of Haverford Township, intersecting the western terminus of Darby Road, and then heads into Radnor Township, passing the Overbrook Golf Club and Radnor Valley Country Club. It then intersects Conestoga Road near the Radnor Friends Meetinghouse underneath Interstate 476. PA 320 then continues northeastward to a junction with Spring Mill Road, and continues signed as Spring Mill Road across Lancaster Avenue (U.S. Route 30), bisecting the campus of Villanova University. PA 320 then passes northeastward across County Line Road, passing out of Delaware County and into Lower Merion Township in Montgomery County.
One block after County Line Road, PA 320 turns left onto Montgomery Avenue, and continues along Montgomery Avenue until Matsonford Road, where the Matsonford SEPTA station is located. The road then changes names to South Gulph Road and continues into Upper Merion Township. It heads northward through the village of Gulph Mills, past a large historic rock, and then intersects the Schuylkill Expressway (Interstate 76). After this intersection, PA 320 continues northeastward along Trinity Road, Holstein Road, and Swedeland Road until its northern terminus at Pennsylvania Route 23 (Schuylkill River Road) near the Schuylkill River north of West Conshohocken.
||Chester||0.000||0.000||PA 291 (Fourth Street)|
|0.335||0.539||US 13 (Ninth Street)|
|0.599||0.964||I-95||Exit 6 on I-95|
|Nether Providence Township||2.180||3.508||PA 252 north (Providence Road) – Media||Southern terminus of PA 252|
|Springfield Township||6.203||9.983||PA 420 south (Woodland Avenue)||Northern terminus of PA 420|
|6.509||10.475||US 1 (State Road) to I-476||Interchange|
|Marple Township||9.737||15.670||PA 3 (West Chester Pike) – Newtown Square, Upper Darby|
|Radnor Township||14.372||23.129||US 30 (Lancaster Avenue) to I-476|
||Upper Merion Township||17.272||27.797||I-76 (Schuylkill Expressway) – King of Prussia, Philadelphia||Exit 330 (Gulph Mills) on I-76|
|18.832||30.307||PA 23 (Schuylkill River Road) – Bridgeport, Conshohocken|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
- Bureau of Maintenance and Operations (December 31, 2012). "Roadway Management System Straight Line Diagrams" (2013 ed.). Pennsylvania Department of Transportation. Retrieved September 14, 2013.
- Google Inc. Google Maps – Pennsylvania Route 320 (Map). Cartography by Google, Inc. https://maps.google.com/maps?saddr=PA-291+E&daddr=39.891167,-75.353359+to:39.9503852,-75.3509194+to:39.9964749,-75.3564621+to:40.0486959,-75.3367151+to:PA-23+W%2FSchuylkill+River+Rd&hl=en&ll=39.985538,-75.334625&spn=0.43036,0.891953&sll=40.038918,-75.35677&sspn=0.053753,0.111494&geocode=FXINYAIdySqC-w%3BFd-wYAId8TKC-ymdFibROujGiTE9ga3FKzGUsw%3BFTGYYQIdeTyC-ykl1ZkYBerGiTE1TYPPUB5CtA%3BFTpMYgId0iaC-ylzl8OhkerGiTGQNMfTNK0veA%3BFTcYYwId9XOC-yktmHpq2b_GiTFtUR3oBrfB4g%3BFYKmYwId0JyC-w&mra=dpe&mrsp=4&sz=14&via=1,2,3,4&t=m&z=11. Retrieved May 7, 2013.
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