Arkansas Highway 642 (AR 642) is a north–south state highway in Northwest Arkansas that connects Interstate 42 to Northwest Arkansas National Airport. Opened on September 4, 2026, as part of the Springdale Northern Bypass project, the highway serves as an important connector to the airport from Washington County and western Benton County.
History On September 4, 2026, the connector road from Interstate 42 to Northwest Arkansas National Airport opened the same day as Phase 2 of Springdale Northern Bypass opened.
Future An extension northward to Interstate 49 near Centerton has been proposed by ARDOT on May 25, 2023.
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