Interstate 42

Interstate 42
I-42 highlighted in red; future segments in blue; unbuilt future segments in orange
Route information
Maintained by NCDOT
Length	31.5 mi[1][2] (50.7 km)
Existed	September 16, 2024[3]–present
Tourist routes	Clayton Bypass Scenic Byway
NHS	Entire route
Western segment
Length	9.8 mi[1] (15.8 km)
West end	I-40 / NC 540 near Garner
East end	US 70 / US 70 Bus. near Clayton
Eastern segment
Length	21.7 mi[2] (34.9 km)
West end	US 70 in Goldsboro
Major intersections	I-795 in Goldsboro US 117 in Goldsboro US 13 in Goldsboro
East end	US 70 in La Grange
Location
Country	United States
States	North Carolina
Counties	NC: Wake, Johnston, Wayne, Lenoir
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future
← NC 41 NC → NC 42

Interstate 42 (I-42) is a partially completed Interstate Highway in the US state of North Carolina, currently existing in two separate segments in the eastern part of the state, totaling up to 31.5 miles (50.7 km). Both segments are entirely concurrent with US 70. The completed and signed segments of I-42 currently run from I-40 eastwards along the 9.8-mile (15.8 km) Clayton Bypass to an interchange with Business US 70 southeast of Clayton. The Interstate resumes again along the Goldsboro Bypass, running for 21.7 miles (34.9 km) north of Goldsboro, ending again at US 70. The Interstate eventually will run from I-40 to Morehead City, where it will terminate along the Northern Carteret Bypass, north of Beaufort. I-42 also overlaps the Clayton Bypass Scenic Byway, from I-40 to US 70 Bus.^[4]