U.S. Route 421 in North Carolina

U.S. Route 421 (US 421) is a major road that is part of the United States Numbered Highway System. It runs from Fort Fisher, North Carolina, all the way to Michigan City, Indiana. In North Carolina, the road travels about 328 miles (528 km) from Fort Fisher to the Tennessee state line near Zionville, North Carolina.

The road goes from the coastal plains to the Appalachian Mountains. It helps connect important cities such as Wilmington, Sanford, Greensboro, Winston-Salem, and Boone. Even though it is signed as running north–south, much of the road actually goes east–west, especially between Greensboro and the Tennessee border. Some parts of the road have been upgraded to freeway standards, especially between Sanford and North Wilkesboro.

US 421 was first established in 1931 between Greensboro and Boone, North Carolina, replacing North Carolina Highway 60. Over the years, the road was extended to reach both Fort Fisher and Tennessee. Today, most of the highway is part of the North Carolina Strategic Highway Corridors system. Because of this, many parts of the old two-lane road have been turned into a bigger freeway/expressway with four or more lanes. You can still find old parts of the road called "Old U.S. Route 421" along the entire route.

Route description

US 421 starts at a parking area near Pleasure Island. It quickly passes through a junction and reaches the Fort Fisher Ferry Terminal, where travelers can cross the Cape Fear River to Southport. Just after the ferry terminal is Fort Fisher State Recreation Area, the site of important historical battles.

The highway continues north through popular tourist spots like Kure Beach and Carolina Beach. It crosses the Cape Fear River and enters downtown Wilmington. From there, it heads west, sharing the road with other highways and moving through Brunswick County before returning to New Hanover County. It connects with Interstate 140 and continues toward Clinton.

North of Interstate 140, the road stays a wide four-lane highway for a while, then becomes a narrower two-lane road until it reaches Dunn. In Clinton, it bypasses the city on a freeway section. There is a rest area just north of Delway. The highway meets I-95 in Dunn and parallels I-40 for a distance.

After passing through Dunn and Erwin, US 421 becomes a wide four-lane highway again until it reaches Lillington. It crosses the Cape Fear River into downtown Lillington and then heads west toward Sanford. In Sanford, the highway now uses a bypass freeway instead of going through the city center.

From Sanford to near Siler City, US 421 is an expressway, bypassing several small towns. It then becomes a freeway, bypassing more towns, until it reaches the Greensboro Urban Loop. Near Pleasant Garden, it joins I-85 on the loop, then leaves to join I-40 heading toward Winston-Salem. In Winston-Salem, it uses Salem Parkway through the city center.

Continuing west, US 421 passes through towns like Yadkinville and Wilkesboro. Near North Wilkesboro, it passes close to a famous speedway and a special rest area. As it leaves Wilkesboro, the road starts to climb into higher elevations, leading toward the Blue Ridge Mountains. The highway provides access to the Blue Ridge Parkway at Deep Gap before continuing to Boone. Finally, it narrows to a two-lane road and heads toward the Tennessee state line, ending near Mountain City.

Designations

U.S. Route 421 shares paths with two special scenic roads in North Carolina: the Cape Fear Historic Byway in downtown Wilmington, and the U.S. 421 Scenic Byway between Deep Gap and Boone. Parts of two bicycle routes in North Carolina also follow U.S. 421. North Carolina Bicycle Route 5 runs together with U.S. 421 from its start at Fort Fisher up to near Snows Cut, passing through downtown Wilmington and ending near Montague, North Carolina and close to Coats. A small section of North Carolina Bicycle Route 3 also shares the road in downtown Wilmington.

History

US 421 started appearing on maps in 1931, running from Winston-Salem to Boone in North Carolina. It shared its path with another road called NC 60. Over the years, the highway was extended and rerouted many times. It grew from Winston-Salem down to Fort Fisher at the coast and up toward Tennessee.

The road was changed to make travel easier, with new paths around towns and better roads connecting places. Big projects helped make US 421 faster and more direct, like building freeways and new bridges. One major update happened in Winston-Salem between 2018 and 2020, where the road was rebuilt to improve travel for everyone.

Main article: Salem Parkway (North Carolina)

Future

In September 2019, a group in Greensboro supported the idea of making part of US 421 an interstate highway. This would help traffic, especially for military and goods moving around, and provide extra escape routes in emergencies. It could also help grow the economy in certain areas.

Later, in November 2021, a new law suggested upgrading US 421 to become an interstate, possibly named I-685. This would improve roads from Greensboro to Sanford and create a new path to I-95. In June 2022, a group in Wilmington asked to extend this plan further south to their area, which could help connect people and places better, though there are concerns about how it would work with existing roads. So far, no final decisions have been made.

Other ideas include making another part of US 421 an interstate from Winston-Salem to Wilkesboro, and building a new road and bridge near Wilmington called the Cape Fear Skyway, though that project has faced delays and is not expected to start building until at least 2029.

Junction list

Note – Exit numbers west of Winston-Salem are aligned when US 421 went north around Greensboro in late-1980s/early-1990s. As a result, from realignments in Greensboro, the actual mileage vs. exit number mileage is off by an average of 3.5 miles (5.6 km).

County	Location	mi	km	Exit	Destinations
New Hanover	Fort Fisher	0.2	0.32		NC 211 north – Southport
	Myrtle Grove	13.5	21.7		NC 132 north (College Road) – Wilmington
	Wilmington	15	24		US 117 (Shipyard Boulevard) – Wilmington, State Port
		18	29		US 76 east / US 17 Bus. north (3rd Street) – Wrightsville Beach, Downtown Wilmington
		19	31		Front Street
Brunswick	​	21	34		US 17 / NC 133 south / US 74 / US 76 west – Bolivia, Southport, Whiteville
New Hanover	​	22	35		U.S.S. North Carolina Road/Battleship Road
	​	24	39		US 74 east / NC 133 north – Wrightsville Beach, Hightsville
	​	25.5	41.0		I-140 – Jacksonville, Myrtle Beach
Pender	Long Creek	38.5	62.0		NC 210 – Rocky Point, Currie
	Malpass Corner	44	71		NC 11 south / NC 53 – Atkinson, Burgaw
	​	52	84		NC 11 north – Penderlea, Willard
Sampson	Harrells	60	97		NC 41 (Tomahawk Highway/Wallace Highway) – Tomahawk, Wallace
Duplin	No major junctions
Sampson	Delway	65	105		NC 903 (Magnolia-Lisbon Road) – Magnolia, Kenansville
	Clinton	79	127		US 701 south (Garland Highway) / US 701 Bus. north (Sunset Boulevard) – Garland, Clinton
		80	130		To NC 24 east (Tam Road) – Warsaw
		81	130		NC 24 east (Southwest Boulevard) – Warsaw
		82	132		NC 24 west (Sunset Avenue) – Roseboro, Fayetteville
		83	134		US 701 north (Faircloth Freeway) – Newton Grove
	​	95	153		NC 242 south (Salemburg Highway) – Salemburg, Roseboro
	Spivey's Corner	99	159		US 13 (Fayetteville Highway/Newton Grove Highway) – Fayetteville, Newton Grove
		100	160		NC 242 north (Benson Highway) – Benson
Harnett	Dunn	109	175		I-95 / NC 55 east – Fayetteville, Benson, Newton Grove
		110	180		US 301 (Clinton Avenue) – Fayetteville, Benson
	Erwin	114	183		NC 55 north / NC 82 south / NC 217 south (13th Street) – Erwin, Coats
	​	119	192		NC 27 east – Coats
	Lillington	124	200		US 401 north (Cornelius Harnett Boulevard) / NC 210 north (Main Street) – Fuquay-Varina
		125	201		US 401 south / NC 27 east / NC 210 south (Main Street)
Lee	Sanford	143	230	143	US 421 Bus. north / NC 87 Byp. south – Sanford, Fayetteville
		144	232	144	NC 42 (Broadway Road) – Fuquay-Varina
		145	233	145	Kelly Drive
		148	238	148	Colon Road
	​	149	240	149	US 1 / US 15 / US 501 / NC 87 – Raleigh, Southern Pines
	​	153	246	153	US 421 Bus. south (Cumnock Road) – Sanford
Chatham	Goldston	159	256	159	Pittsboro-Goldston Road
	​	163	262		NC 902 – Pittsboro
	​	168	270	168	Sam Fields Road – Siler City
	Siler City	171	275	171	US 64 – Siler City, Pittsboro
	​	174	280	174	Piney Grove Church Road
Randolph	Staley	180	290	180	Old US Highway 421 – Liberty, Staley
	Liberty	181	291	181	NC 49 – Liberty, Ramseur
		184	296	183	Old Liberty Road – Liberty
				186	Shiloh Road / Starmount Road
				187	Julian Airport Road / Dogwood Way
				188	Colonial Trading Path / Shiloh Road
Guilford	Julian	190	310	190	NC 62 – High Point, Burlington
	​	194.3	312.7	194	Woody Mill Road / Company Mill Road – Climax
	​	196	315	196	Neeley Road / Williams Dairy Road – Climax
	​	197	317	197	I-85 north to I-40 – Durham, Raleigh
US 421 overlaps with Interstate 85 (exits 126 to 121), Interstate 73 (exits 97 to 103), and Interstate 40 (exits 212 to 206)
Guilford	Colfax			—	I-40 – Greensboro
Forsyth	Kernersville			221	NC 150 east (Macy Grove Road) – Oak Ridge
				222	NC 66 – Kernersville, Walkertown
				224	South Main Street – Kernersville
				227	NC 74 west – Wytheville
	Winston-Salem			228	Linville Road
				230	US 158 east (Reidsville Road) – Walkertown, Reidsville
				231	Lowery Street / Fifth Street
				232A	Martin Luther King Jr. Drive
				232B-C	US 52 / NC 8 (John Gold Memorial Expressway) – Lexington, Mount Airy, Airport, Salem College, Old Salem
				233A	Main Street / First Street – Old Salem, Salem College
				233B	Cherry Street – Convention Center
				234A	NC 150 west (Peters Creek Parkway) – Truist Stadium
				234B	West First Street / Hawthorne Road
				234C	Cloverdale Avenue
				235	US 158 west (Stratford Road)
				236	Knollwood Street
				237A-B	NC 67 (Silas Creek Parkway) – Wake Forest University, LJVM Coliseum, Forsyth Tech
		234	377	238	I-40 – Greensboro, Statesville
		235	378	239	Jonestown Road / Hanes Mall Boulevard
		236	380	240	Peace Haven Road
	Lewisville	238	383	242	Lewisville-Clemmons Road – Lewisville, Clemmons
		240	390	244	Williams Road – Lewisville
	​	242	389	246	Shallowford Road
Yadkin	​	245	394	249	Dinkins Bottoms Road/Baltimore Road
	​	247	398	251	Speer Bridge Road
	​	249	401	253	Shacktown Road/Old Stage Road
	​	252	406	256	Unifi Industrial Road
	Yadkinville	253	407	257	US 601 (State Street) – Yadkinville, Mocksville
	​	255	410	259	Reavis Road
	Brooks Crossroads	259	417	263	US 21 – Jonesville
		260	420	264	Asbury Church Road
	​	262	422	265	I-77 – Elkin, Statesville, Charlotte
	​	264	425	267	Windsor Road/Oak Grove Church Road
Wilkes	​	267	430	270	Dennyville Road
	​	269	433	272	To NC 268 (Clingman Road/Somers Road)
	​	273	439	276	To NC 268 (Red, White, and Blue Road/Mathis Farm Road)
	​	274	441	277	Windy Gap Road/Speedway Road
	​	279	449	282	US 421 Bus. / NC 115 (Statesville Road) – North Wilkesboro, Statesville
	Wilkesboro	282	454	285	Brushy Mountain Road – Wilkesboro
		283	455	286A	NC 16 south / NC 18 (Cherry Road) – Wilkesboro, Taylorsville, Lenoir
		283.5	456.2	286B	NC 268 – Wilkesboro
		284	457		US 421 Bus. (D Street) – North Wilkesboro
		287	462		NC 16 north – Jefferson
Watauga	Deep Gap	304	489		Blue Ridge Parkway
		305	491		US 221 north – West Jefferson
	Boone	313	504		NC 194 north (Jefferson Road) – Todd
		314	505		US 221 south / NC 105 south (Highway 105 Extension) – Linville, Banner Elk
		314.5	506.1		US 321 south (Hardin Street) – Blowing Rock
	Vilas	320	510		NC 194 south – Valle Crucis
	Sugar Grove	321	517		US 321 north – Elizabethton
	​	328	528		US 421 north / SR 34 north – Mountain City
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access       Unopened

Alternate names

U.S. Route 421 in North Carolina is often just called "421", but it has many different names in various places along its path. For example, in Wilmington it is sometimes called Burnett Boulevard, and in Carolina Beach it is known as Carolina Beach Road. Other places give it names like Cornelius Harnett Boulevard, Cumberland Street, and many more, depending on the town or area it passes through.

The highway also has special names in some spots, such as the Doc and Merle Watson Highway near Boone and the Salem Parkway through Forsyth County. Each name reflects the local area and its history.