Pennsylvania Route 145

Pennsylvania Route 145
Battle of the Bulge Veterans Memorial Highway
Route information
Maintained by PennDOT and City of Allentown
Length	20.887 mi[1] (33.614 km)
Existed	1928–present
Major junctions
South end	I-78 / PA 309 in Upper Saucon Township
Major intersections	PA 222 in Allentown US 22 in Whitehall Township PA 329 in Whitehall Township
North end	PA 248 in Lehigh Gap
Location
Country	United States
State	Pennsylvania
Counties	Lehigh, Northampton
Highway system
Pennsylvania State Route System Interstate US State Scenic Legislative
← PA 144 → PA 146

Pennsylvania Route 145 (PA 145) is a 20.89 mi (33.62 km) long north–south state highway in the Lehigh Valley area of eastern Pennsylvania. It connects Interstate 78 (I-78) and PA 309 in Lanark, Lehigh County, north to PA 248 in Lehigh Gap, Northampton County.

PA 145 is the main north–south arterial into Allentown, the third-largest city in the state. The route enters the city on South 4th Street and follows multiple streets to Center City Allentown, where it follows the one-way pair of 6th Street northbound and 7th Street southbound. North of Allentown in Whitehall Township, a seven-mile (11.2 km) portion of PA 145 is known as MacArthur Road, named in honor of General Douglas MacArthur. MacArthur Road is a divided highway; between U.S. Route 22 (US 22) and Eberhart Road, it is six lanes wide with a Jersey barrier and jughandles while the remainder of the road a four-lane divided highway. MacArthur Road is the location of the main commercial center of the Lehigh Valley. North of Eagle Point, PA 145 becomes a two-lane undivided road that parallels the Lehigh River, crossing the river into Northampton County at Treichlers. The route continues along the east bank of the river and passes through Walnutport before reaching its northern terminus. PA 145 is dedicated as the Battle of the Bulge Veterans Memorial Highway in honor of the veterans who fought in the Battle of the Bulge in World War II.

The section of road south of Center City Allentown was originally designated as part of US 309 when the U.S. Highway System was established in 1926. Between 1928 and 1930, PA 312 ran concurrent with US 309 on this stretch of road. PA 145 was first designated in 1928 between intersections with PA 45 (now PA 248) in Weiders Crossing and Bath, heading south to Cementon before turning east to Bath. A portion of PA 329 was designated between Cementon and Allentown along Coplay Road, Mickley Pike, and 7th Street, ending at US 22, US 309, PA 29, and PA 43 at 7th and Hamilton streets.

The Seventh Street Pike was built between the 1920s and 1941 as a straight north–south road in Whitehall Township; PA 329 was relocated onto it in the 1930s. In 1941, PA 145 and PA 329 switched alignments, with PA 145 heading south along Seventh Street Pike and 7th Street to US 22/US 309/PA 29 at Tilghman Street in Allentown and PA 329 heading east to Bath. Seventh Street Pike was renamed to MacArthur Road in the early 1950s. In the 1950s, the southern terminus of PA 145 was cut back to the US 22 freeway in Whitehall Township and US 309 and PA 29 were rerouted to bypass Allentown. The MacArthur Road section of PA 145 was widened into a divided highway in 1970. In the 1980s, a proposal was made to extend PA 145 and US 222 through Allentown to provide numbered routes in the city. PA 145 was extended south to its current terminus in 1991.