Arkansas Highway 3

Highway 3 (AR 3, Ark. 3, Hwy. 3, formerly State Road 3) was a state highway in southern Arkansas. Running predominantly southwest to northeast, its southern terminus was at the Louisiana state line approximately 18 miles (29 km) south of Magnolia, Arkansas. Its northern terminus was at U.S. Highway 64 approximately 3 miles (4.8 km) north of Lehi. It was maintained by the Arkansas Highway Department (AHD), now known as the Arkansas Department of Transportation (ArDOT).

State Road 3
Route information
Maintained by AHD
Length	263 mi (423 km)
Existed	1926–1940
Major junctions
South end	LA 159 at the Louisiana state line
	AR 4 in Camden US 167 in Fordyce US 65 in Pine Bluff US 63 in Pine Bluff US 165 in Stuttgart US 63 near West Memphis
North end	US 64 northwest of West Memphis
Location
Counties	Columbia, Ouachita, Calhoun, Dallas, Cleveland, Jefferson, Arkansas, Prairie, Monroe, Lee, St. Francis, Crittenden
Highway system
Arkansas Highway System Interstate U.S. State Business Spurs Suffixed Scenic Heritage ← AR 2 → AR 4

Between Magnolia and Lehi, Highway 3 was replaced in 1935 by US 79, splitting Highway 3 into 2 sections; one segment south of Lehi later became Highway 147 and Highway 50. In late 1936, Highway 3 had a third segment added between McNeil and Waldo. In 1939, the segment between Magnolia and the Louisiana state line was transferred to Highway 19. In mid-1940, the segment north of Lehi was replaced by Highway 147, and the segment from McNeil to Waldo was renumbered Highway 98.