U.S. 321

U.S. 321 originates near Lenoir City in Loudon County. U.S. 321 travels east to Maryville, where it loops south toward the Great Smokey Mountains via Pigeon Forge and Gatlinburg. U.S. 321 turns north again to Cosby and Newport. Cardinal direction banners switch at the north split with U.S. 19E in Elizabethon. U.S. 321 northbound from Johnson City becomes U.S. 321 southbound to Hampton and vice versa.

U.S. 321 runs northeast to Greeneville, where it combines with U.S. 11E to Jonesborough and Johnson City. A short expressway section leads east from I-26/U.S. 23 toward Elizabethton. Following a circuitous route, U.S. 321 traverses areas of Cherokee National Forest by Watauga Lake to the Stone Mountains and the North Carolina line.

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North East

U.S. 321 (University Parkway) intersects S Roan Street just ahead of the parclo interchange with I-26/U.S. 19W-23. S Roan Street is the former route of U.S. 19W/23 into Downtown Johnson City.
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Interstate 181 ended at the exchange with U.S. 321 until August 5, 2003, when it was replaced by an extension of I-26 north to I-81.
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East of I-26, U.S. 321 upgrades to a freeway for 3.8 miles leading into the city of Elizabethton. The ensuing exit is with Milligan Highway.
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A guide sign for I-181 was amended to display I-26 west and U.S. 23 north. I-26 leads north from Johnson City to Kingsport.
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Milligan Highway extends south from Legion Street in Johnson City to SR 359 in southwestern reaches of Elizabethton.
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Spanning U.S. 321 within the parclo interchange at Milligan Highway, Tweetsie Trail follows the former ET and WNC Railroad line.
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The freeway along U.S. 321 concludes at SR 359 (Milligan Highway).
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SR 359 (Milligan Highway) connects Elizabethton with I-26/U.S. 19W-23 at Okolona, 4.84 miles to the southwest.
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U.S. 321 passes over Tweetsie Trail north from the Elizabethton Municipal Golf Course to the intersection with SR 91 south and G Street (former SR 362) east.
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SR 91 (Elizabethton Highway) leads west back to Johnson City along the former alignment of U.S. 321. A second branch of SR 91 extends northeast from U.S. 19E at Elizabethon.
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SR 362 was realigned eastward from G Street onto a new alignment opened south from U.S. 321 by November 2015.
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A $44 million project realigned SR 362 from Gap Creek Road onto a new highway extending 5.895 miles south from U.S. 321 to SR 361.¹
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All of the new alignment of SR 362 (Mary Patton Highway), except for the 0.140 mile link between U.S. 321 and parallel G Street, opened to traffic on August 7, 2015.¹
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U.S. 321/SR 67 (W Elk Avenue) north bound at Franklin Club Drive north and Williams Avenue south in Elizabethton.
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U.S. 321/SR 67 at McArthur Avenue south and Cherokee Park Drive north.
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U.S. 321/SR 67 shift onto Broad Street from Elk Avenue, which continues into Downtown Elizabethton.
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SR 400 follows N Lynn Avenue south from Watauga Road to end at U.S. 321/SR 67 (Broad Street).
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SR 400 constitutes a 10.91 mile long arc west to the city of Watauga and south to Johnson City.
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Broad Street meets Sycamore Street just west of the Doe River in Elizabethton.
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U.S. 19E (Veterans Memorial Parkway) converges with U.S. 321/SR 67 just south of the Watauga River.
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U.S. 321/SR 67 combine with U.S. 19E south for 5.16 miles to Hampton.
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U.S. 19E travels north from Elizabethton to Bluff City and Bristol. SR 91 branches east from nearby to Hunter and Shady Valley.
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South East

U.S. 19E/321-SR 67 intersect the east end of Elk Avenue just beyond their merge at Broad Street.
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U.S. 19E/321-SR 67 (Veterans Memorial Parkway) run along the west side of Lynn Mountain on the ensuing stretch.
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Jenkins and Iron Mountains rise to the south of Elizabethton.
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State Line drive-in movie theater, located just north of the intersection with State Line Road on U.S. 19E/321-SR 67.
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U.S. 19E-321/SR 67 cross the Doe River for a second time on the Rod Swift Bridge.
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An abandoned bridge from a 1930s alignment is just south of the George S. Brown Bridge on the Doe River.
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U.S. 321/SR 67 resume an easterly course fro U.S. 19E at the unincorporated community of Hampton.
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South East

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U.S. 321/SR 67 straddle southern reaches of Watauga Lake through Cherokee National Forest. The Shook Branch Picnic Ground lies at the southern end of the lake.
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C.R. Doodle White Overlook
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U.S. 321 parts ways with SR 67 toward Boone, North Carolina.
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SR 67 continues northeast to the Johnson County seat of Mountain City.
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State Route 67 extends 20.18 miles north to U.S. 421 at SR 418. U.S. 321 follows SR 159 east 12.49 miles to the state line.
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• South

North West

U.S. 321 north combines with SR 67 west within Cherokee National Forest east of Fish Springs and north of Little Pond Mountain.
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U.S. 321/SR 67 wind along the south side of Watauga Lake for the bulk of the nine mile drive west to Hampton.
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Entering the unincorporated community of Fish Springs.
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The C.R. Doodle White Overlook lines the north side of U.S. 321/SR 67 by the Little Story Creek arm of Watauga Lake.
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U.S. 321/SR 67 combine with U.S. 19E west of 1st Avenue in Hampton.
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U.S. 19E/321-SR 67 overlap north to Elizabethton. U.S. 19E heads southeast to Roan Mountain and Elk Park, North Carolina.
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South West

The freeway along U.S. 321 west from Elizabethton concludes at the parclo interchange with Interstate 26 and U.S. 19W/23. U.S. 321 continues along University Parkway into Johnson City.
08/23/03