Pennsylvania Route 145

Pennsylvania Route 145

PA Route 145 marker

PA Route 145
Route information
Maintained by PennDOT
Length: 20.46 mi[1] (32.93 km)
Existed: 1928 – present
Major junctions
South end: I-78 / PA 309 in Upper Saucon Township
  PA 222 in Allentown
US 22 in Whitehall Township
PA 329 in Whitehall Township
North end: PA 248 in Weiders Crossing
Counties: Lehigh, Northampton
Highway system

Roads in Pennsylvania
Interstate • US • State • Legislative

PA 144 PA 146

Pennsylvania Route 145 (designated by the Pennsylvania Department of Transportation as SR 0145), unofficially known as "the gateway to Allentown",[2] is a 20.46 mi (32.93 km) long north–south state highway in the Lehigh Valley area of eastern Pennsylvania. It connects Interstate 78 and Pennsylvania Route 309 in Lanark to Pennsylvania Route 248 in Weiders Crossing.

Route 145 is the main arterial into Allentown, Pennsylvania, the third-largest city in the state.[3] In Whitehall Township, a seven-mile (11.2 km) portion of PA 145 is known as MacArthur Road, named in honor of Gen. Douglas MacArthur.[4]. MacArthur Road is almost entirely divided; between US 22 and Eberhart Road, it is six-lanes wide with ramps. In Whitehall Township, MacArthur Road is the location of the main commercial center of the Lehigh Valley. The Lehigh Valley Mall, a large Allentown-area shopping mall, is situated on Route 145.[5]


Route description

Lehigh County

South Mountain

PA 145 begins at an interchange with Interstate 78 at exit 60 and PA Route 309 in Upper Saucon Township, located 4 miles (6.4 km) southeast of downtown Allentown. This interchange is not only the southern terminus of PA 145, but also the eastern terminus of the Interstate 78/PA Route 309 concurrency. Just north of I-78, PA 145 is known as South Pike Ave. and meets Vera Cruz Rd. and Oakhurst Dr. at an at-grade intersection.[6]

Diagram of the interchange at PA 145's southern terminus

The route continues to the north as it runs up a hill on South Mountain with S-curves. Upon entering the village of Summit Lawn at the peak of South Mountain, PA 145 intersects Rock Rd., providing access to westbound I-78 and northbound PA 309. PA 145 then begins to go down another hill on South Mountain.[7]


Going down a steep hill, PA 145 enters the city of Allentown as South 4th St. At the end of the hill, PA 145 intersects Emaus Avenue, a major road that connects Bethlehem, Allentown, and Emmaus. Past Emaus Avenue, PA 145 continues through the Allentown neighborhood of Mountainville, passing east of a shopping center with stores such as Price Rite and K-Mart. Exiting Mountainville, PA 145 turns west onto Susquehanna Street and crosses both Trout Creek and the Norfolk Southern Railway before making a wide curve to the north and becoming S. 5th St.[8]

Just after becoming S. 5th St., PA 145 divides into a pair of one-way streets, known as a one-way couplet. Southbound PA 145 follows S. 6th St., which then turns to the east onto Wyoming St. and reunites with the other half at South Fifth Street. Northbound PA 145 is known as S. 5th St.; it passes Good Shepherd Hospital, turns west onto Auburn St., and reunites with southbound PA 145 at a junction with S. 6th St. and Lehigh St. North of the split, PA 145 becomes Lehigh St., crosses Little Lehigh Creek, and intersects Martin Luther King, Jr. Drive. Slightly north of the M.L.K. Drive intersection, PA 145 progresses on its alignment up a long hill.[9]

At the top of the hill, PA 145 divides again, as northbound PA 145 turns east onto Union St. while southbound PA 145 comes from the west, also as Union St. Just after becoming Union St., northbound PA 145 turns back northward to become 6th St. While southbound PA 145 is known as 7th St., it passes through the commercial district of Allentown and is a major one-way three-lane street home to one of Allentown's oldest supermarkets, Little Apple Market.[10] At the intersection of 7th and Hamilton Streets, there is a monument called the Sailors and Soldiers Monument in Center City, Allentown. The monument was built to honor General Phillip Sheridan’s Civil War unit and the 47th Regiment of Pennsylvania Volunteers.[11] Meanwhile, Route 145 continues its alignment as 6th St. and intersects the northern terminus of Route 222 (which is split into Walnut and Linden Streets).

PA 145 at 7th Street at the Sailors and Soldiers Monument in Allentown

Sixth St. is home to The Morning Call, Allentown's main newspaper distributor. In the northern region of Allentown, PA 145 (as Seventh and Sixth Streets) intersects Tilghman St., one of the major streets in Allentown.[12] After crossing Tilghman St., northbound PA 145 turns west onto Washington St. and then north onto 7th St. to reunite with southbound Route 145. North of Washington St., PA 145 continues its course as 7th St., consisting of three lanes. Then, PA 145 crosses a tall bridge over Sumner Avenue, leaves Allentown, and becomes MacArthur Rd.[13]

MacArthur Road

MacArthur Road heading south at the Lehigh Valley Mall entrance

After crossing the bridge, PA 145 enters Whitehall Township and becomes a divided highway known as MacArthur Road, consisting of four lanes. This section of PA 145, previously known as Seventh Street Pike, or the Seventh Street Extension, was renamed in honor of Gen. Douglas MacArthur by township supervisors in 1942.[4] In Whitehall, PA 145 passes several intersections, including Mickley Rd., Jordan Pkwy., and, after crossing Jordan Creek, Fairmont Ave. Just north of Fairmont Ave., PA 145 intersects the Lehigh Valley Thruway (US 22) at a full cloverleaf interchange. North of this point, PA 145 has been widened to six lanes.[14]

Just north of US 22, PA 145 traverses the main commercial center of the Lehigh Valley, passing to the west of Lehigh Valley Mall. The first junction is Grape St., with two ramps to access it from both directions. PA 145 continues through numerous stores and businesses, passing to the west of Whitehall Mall and making a second junction with Mickley Rd. before crossing Schadt Ave. At the intersection with Eberhart Rd., PA 145 is no longer a divided, six-lane road, but rather an undivided four-lane road. About a mile north of Eberhart Rd., PA 145 becomes a divided highway again, but with only four lanes.

About a mile west of Northampton, PA 145 meets PA Route 329. North of there, PA 145 continues its course as MacArthur Rd. MacArthur Rd. comes to an end as PA 145 continues its alignment as a two lane road; at this point, the Lehigh River is almost visible and is only about 280 feet (85.3  meters) east of PA 145. After crossing the village of Laurys Station, PA 145 curves to the west and leaves Lehigh County while crossing the Lehigh River on the Treichlers Bridge.[15]

Northampton County

After PA 145 crosses the bridge over the Lehigh River, the highway enters Northampton County and intersects Blue Mountain Drive, which has direct access to the Blue Mountain Ski Area.[16] Then, PA 145 curves to the south as Riverview Drive, later diverging to the west and back to the north, parallel to the Lehigh River. PA 145 enters Walnutport from the south as Riverview Drive which becomes Best Avenue upon entering the borough.[12] At the center of Walnutport, Route 145 meets Main Street. In Lehigh Township, PA 145 becomes Riverview Drive once again as it terminates at an intersection with PA Route 248 located in Weiders Crossing. The northern terminus of PA Route 873 is also on PA 248, just north of PA 145.[9]


PA 145 was commissioned as an east–west route from Weiders Crossing to Bath, with both termini at Pennsylvania Route 45. At the time, from Whitehall Township hamlet of Cementon to Bath, PA 145 was routed on what is today Pennsylvania Route 329. From Cementon to Tilghman Street in Allentown, PA 329 was signed as the modern MacArthur Road section of PA 145.[17][18]

By 1940, Route 145 was a north–south route, replacing the previous PA 329 designation. From Tilghman Street to Lehigh Street, US 309 and PA 29 were designated along 7th Street and the northernmost part of Lehigh Street, sections of the modern PA 145. Prior to the 1960s, US 309 was designated onto the southernmost segment of present-day PA 145, from downtown Allentown to Summit Lawn.[19]

By 1960, the southern terminus of PA 145 was slightly moved north to an interchange with I-78 and U.S. Route 22 in Whitehall Township.[20]

In 1984, PennDOT proposed to extend Route 145 to Interstate 78 and Pennsylvania Route 309 in Lanark. Traffic engineer Samuel D. Darrohh said that Allentown is one of few Pennsylvania cities without a traffic route going through it. He supported his idea by saying that motorists also might be aided if U.S. Route 222 eventually is extended along Hamilton Boulevard to connect with the proposed PA 145 corridor. By 1991, the extension was completed.[21][22][23]

Major intersections

County Location Mile[24] Destinations Notes
Upper Saucon Township 0.00 I-78 / PA 309 Access to PA 309 south and I-78 east.[12]
Allentown 3.03 Susquehanna Street Former routing of PA 43[19]
3.62 Lehigh Street Formerly US 309 and PA 29[19]
4.15 PA 222 north (Walnut Street) Northern terminus of PA 222
4.36 PA 222 south (Linden Street) The Morning Call is located at this intersection.
4.97 SR 1002 (Tilghman Street) Former routing of US 22, US 309, and PA 29[19]
Whitehall Township 6.15 US 22 (Lehigh Valley Thruway) Cloverleaf interchange
12.71 PA 329 (Main Street)
Walnutport 19.60 Main Street Formerly PA 245[18]
Lehigh Township 22.46 PA 248 (Lehigh Drive)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ "Length of Pennsylvania Route 145". Mapquest. m1%252fgon8ztR7rXbBq0PdHtZxnQ5FfJXJc9XLkbFt7NE9ukHRHhWGXLLa1r1toEKpyWq4AdXdKZNNwDQvYMn7ELdmVH19N0CRFfKRIz5gaGGB3K567vQhWPWIX7EyBZb9mDcBBQkjI29c1gkHSzuDe1B4%252fMX9JWTzCpdrPb%252bHKVhjJc9mdn6nW6%252fxKo4bn82KisayqbbqOLa4IaREyJPW0cRx5bAQIvBIjpuo4GU8NhXJ2XPZiY4NaITUDfA42gtJg8 kBcoKdfgISfCR8bw95jGj7Fgmjcnp8LXwfm2ZqfDXtzdJXuSN9xN4PQ2wW8PkUgP6s9BkfHX1fWJbzqdoKY5U9M48zRAWAB5tD1Ts4R03rOnD%252fdLU7jgUSgT4tlqkcYCGHJp3qB%252b1kdBHgVV2GyABget7EjfzCpgNFwBMdPDXH2s20P6zT3a%252fdB%252f7l2Xvsx%252b6R%252fUmpHmSCbyJzdIy%252fxnqm0J8r7zyDkqa5iNc578JUcDha6GIFCiOqoHYihZgG%252fuw7E3H90xf6fVwLtcowdn2NRTw%253d%253d&ct=NA&r=f&1si=navt&2rc=L1AAA&did=1173908878&rsres=1&1y=US&1ffi=&1l=mwmfhv0ttbVrwQJbyWezUQ%253d%253d&1g=uas04dFutCmweLD1U16D2w%253d%253d&1pl=&1v=ADDRESS&1n=LEHIGH+COUNTY&1pn=&1a=3099+Pike+Ave&1c=Coopersburg&1s=PA&1z=18036-9132&2y=US&2ffi=&2l=&2g=&2pl=&2v=&2n=&2pn=&2a=1398+Riverview+Dr&2c=Walnutport&2s=PA&2z=18088-9107&panelbtn=2. Retrieved 2007-03-14. 
  2. ^ Cardenas, Jose (2005-01-31). "Seventh Street merchants getting together to promote business". HighBeam Research (The Morning Call). Retrieved 2007-07-26. 
  3. ^ Pennsylvania Department of Transportation (PDF). Allentown-Bethlehem-Easton Metropolitan area (Map). Retrieved 2007-04-06. 
  4. ^ a b Whelan, Frank (January 16, 2002). "MacArthur Road's heroic name.". The Morning Call: pp. B.4. 
  5. ^ Google, Inc. Google Maps – PA 145, US 22, and the Lehigh Valley Mall (Map). Cartography by Google, Inc.,-75.480795&spn=0.010846,0.020084&t=h&z=16&om=1. Retrieved 2007-07-25. 
  6. ^ "Map of the southern terminus of Pennsylvania Route 145". Mapquest. Retrieved 2007-04-07. 
  7. ^ Pennsylvania Department of Transportation (PDF). 2004 Lehigh County Map (Map). Retrieved 2007-03-15. 
  8. ^ "Map of PA 145 in southern Allentown". Mapquest. Retrieved 2007-04-07. 
  9. ^ a b Rand McNally. Motor Carrier's Road Atlas (Map) (2007 Deluxe ed.). p. 89, section EL 11. 
  10. ^ "Little Apple Market". Yellow Pages. Retrieved 2007-03-17. [dead link]
  11. ^ "Allentown History - Walking Tour". Official website of Allentown. Retrieved 2007-03-19. 
  12. ^ a b c Pennsylvania Department of Transportation (2006) (PDF). Pennsylvania Official Tourism and Transportation (Map). Retrieved 2007-03-12. 
  13. ^ "Map of Allentown". Yellow Pages. Retrieved 2007-03-17. 
  14. ^ DeLorme. Pennsylvania Atlas and Gazetteer Detailed Topographic Maps (Map) (2003 ed.). p. 67, section C6. 
  15. ^ "Whitehall Area Map". Rand McNally.,485%25LL%3D40%2E632118,%2D75%2E473267%25ZM%3DM22961%2E60%25LLICON%3DIcon10,40%2E632118,%2D75%2E473267,,Font11,R%7C%25MINP%3D1%25MS%3DB%7C%7C%26d%3d75%26t%3dm%26z%3d7%26id%3dRMC%26tid%3d1809418862.1185487514.579328%26fix%3d1%26h%3d814BE4EFE201F5C37B4E172E82083D01&n=&A=&C=Whitehall&S=PA&Z=&z=small&l=7&c=USA&h=false&T=40.632118&N=-75.473267&val=multi&sLatLongAddr=true. Retrieved 2007-04-14. 
  16. ^ Pennsylvania Department of Transportation (2005) (PDF). Northampton County (Map). Retrieved 2007-03-15. 
  17. ^ Pennsylvania Department of Highways (1929). Pennsylvania State Highway (Map). Retrieved 2007-07-25. 
  18. ^ a b Pennsylvania Department of Highways (1941) (PDF). Northampton County (Map). Retrieved 2007-03-15. 
  19. ^ a b c d Pennsylvania Department of Highways (1941) (PDF). Lehigh County (Map). Retrieved 2007-03-15. 
  20. ^ Pennsylvania Department of Highways (1960) (PDF). Lehigh County (Map). Retrieved 2007-03-15. 
  21. ^ Pennsylvania Department of Transportation (1991) (PDF). Lehigh County (Sheet 1) (Map). Retrieved 2007-03-15. 
  22. ^ Pennsylvania Department of Transportation (1991) (PDF). Lehigh County (Sheet 2) (Map). Retrieved 2007-03-23. 
  23. ^ Mellin, Ted (1984-07-31). "Route 145 Extension Through The City Receives Backing". The Morning Call. pp. B03. Retrieved 2007-04-16. 
  24. ^ DeLorme Street Atlas 2007, Toggle Measure Tool. Retrieved on 2007-03-12.

External links

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