# U.S. Route 70A (Tennessee)

U.S. Route 70 Alternate (US 70A) is a 61.7-mile-long (99.3 km) alternate route to US 70 between Brownsville, and Huntingdon in West Tennessee. Signage along this route, and on most maps, show it as US 70A and not US 70 Alternate.

## Route description
### Haywood County

US 70A begins in Haywood County in Brownsville at an intersection with US 70/US 79/SR 1/SR 76 just east of downtown. It heads north, concurrent with US 79 and unsigned SR 76, along Dupree Street to bypass downtown along its east side to come to an intersection with SR 369, where the highway turns east along N Washington Avenue to leave Brownsville and pass through farmland and rural areas for several miles before crossing into Crockett County via a bridge over the South Fork of the Forked Deer River.

### Crockett County

US 70A/US 79 almost immediately enter Bells, where they pass through downtown along High Street and have an intersection with SR 88. They then have an interchange with US 412/SR 20 before leaving Bells and continuing northeast to pass through Fruitvale and Gadsden, where they have an intersection with SR 221, before crossing into Gibson County via a bridge over the Middle Fork of the Forked Deer River.

### Gibson County

They immediately enter Humboldt and have an interchange with US 70A Bypass/US 79 Bypass/SR 366. US 70A/US 79 pass through neighborhoods along W Main Street to enter downtown, where they become concurrent with US 45W Business/SR 5. US 70A/US 79 now split off along Eastend Drive to pass through neighborhoods and have an intersection with SR 152 before having another intersection with US 70A, US 79 Bypass, SR 366, and US 45W. The highway then leaves Humboldt and continues northeast through rural areas, where they have an intersection with SR 187. US 70A/US 79 now pass through Gibson, where they have an intersection with SR 186, before crossing the North Fork of the Forked Deer River and entering Milan. They pass through the city as Van Hook Street, where they have an intersection with US 45E/SR 43/SR 77/SR 104, with unsigned SR 77 becoming concurrent with US 70A/US 79/SR 76 here. US 70A/US 79 have an intersection with SR 425 before leaving Milan passing through rural farmland, where they cross over the Rutherford Fork of the Obion River shortly before crossing into Carroll County.

### Carroll County

US 70A/US 79 immediately enter the town of Atwood, where they pass through the town along Main Street and have an intersection with SR 220 before coming to a Y-Intersection where US 70A and US 79 split, with US 70A following SR 77 east while US 79 follows SR 76 north. US 70A has an intersection with SR 220 Alternate before leaving Atwood and continuing east to pass through McLemoresville, where it has an intersection with SR 105. It has an intersection with SR 436 before passing through more wooded terrain for a few miles to enter Huntingdon at an intersection with SR 22. SR 22 joins the concurrency and they turn north to bypass downtown along its west side on Veterans Drive before coming to an intersection with SR 22 Business, where SR 22 splits and heads north. US 70A curves to the east along the city’s north side for a couple of miles, where SR 77 splits off and US 70A begins following unsigned SR 364. US 70A now turns south for a short distance before coming to an end at an intersection with US 70 Business and US 70 (SR 1/SR 364) on Huntingdon’s east side.

## Major intersections

| County | Location | mi | km | Destinations | Notes |
| Haywood | Brownsville | 0.0 | 0.0 | US 70 / US 79 south (S Dupree Street/E Main Street/SR 1/SR 76 south) – Stanton, Jackson | Western terminus; western end of US 79/SR 76 overlap |
| Haywood | Brownsville | 1.2 | 1.9 | SR 369 west (N Washington Avenue) | Eastern terminus of SR 369 |
| South Fork of the Forked Deer River | South Fork of the Forked Deer River | 10.5 | 16.9 | Bridge over the South Fork of the Forked Deer River | Bridge over the South Fork of the Forked Deer River |
| Crockett | Bells | 12.3 | 19.8 | SR 88 west (Main Street) – Alamo | Western end of SR 88 concurrency |
| Crockett | Bells | 12.5 | 20.1 | SR 88 east (Central Avenue) | Eastern end of SR 88 concurrency |
| Crockett | Bells | 13.9– 14.2 | 22.4– 22.9 | US 412 (SR 20) – Dyersburg, Jackson | Interchange |
| Crockett | Gadsden | 19.4 | 31.2 | SR 221 west (Quincy Street) – Alamo | Eastern terminus of SR 221 |
| Middle Fork of the Forked Deer River | Middle Fork of the Forked Deer River | 23.323.4 | 37.537.7 | Bridge over the Middle Fork of the Forked Deer River | Bridge over the Middle Fork of the Forked Deer River |
| Gibson | Humboldt | 23.6– 23.7 | 38.0– 38.1 | US 70A Byp. east / US 79 Byp. north (SR 366 east) – Gibson, Milan | Western terminus of US 70A Bypass and SR 366; southern terminus of US 79 Bypass; interchange |
| Gibson | Humboldt | 24.8 | 39.9 | US 45W Bus. north (N Central Avenue/SR 5 north) | Western end of US 45W Business/SR 5 concurrency |
| Gibson | Humboldt | 25.3 | 40.7 | US 45W Bus. south (E Main Street/SR 5 south) | Eastern end of US 45W Business/SR 5 concurrency |
| Gibson | Humboldt | 25.6 | 41.2 | SR 152 (E Mitchell Street) | |
| Gibson | Humboldt | 26.7 | 43.0 | US 45W / US 70A Byp. west / US 79 Byp. south (SR 366) – Trenton, Three Way, Jackson | Eastern terminus of US 70A Bypass; northern terminus of US 79 Bypass |
| Gibson | ​ | 28.4 | 45.7 | SR 187 east | Western terminus of SR 187 |
| Gibson | Gibson | 30.6 | 49.2 | SR 186 (Main Street) – Trenton, Three Way | |
| Gibson | ​ | 32.9 | 52.9 | Bridge over the North Fork of the Forked Deer River | Bridge over the North Fork of the Forked Deer River |
| Gibson | Milan | 36.6 | 58.9 | US 45E (S 1st Street/SR 43/SR 77 west/SR 104) – Bradford, Medina | Western end of SR 77 concurrency |
| Gibson | Milan | 38.4 | 61.8 | SR 425 west (Middle Road) | Eastern terminus of SR 425 |
| Gibson | ​ | 39.6– 39.7 | 63.7– 63.9 | Rutherford Fork of the Obion River | Rutherford Fork of the Obion River |
| Carroll | Atwood | 42.4 | 68.2 | SR 220 south (Church Street) – Lavinia | Northern terminus of SR 220 |
| Carroll | Atwood | 42.9 | 69.0 | US 79 north (E Main Street/SR 76 north) – Trezevant, McKenzie | Eastern end of US 79/SR 76 concurrency |
| Carroll | Atwood | 43.5 | 70.0 | SR 220 Alt. south (Norris Robinson Loop) | Northern terminus of SR 220 Alternate |
| Carroll | McLemoresville | 48.6 | 78.2 | SR 105 west (W College Street) – Trezevant | Eastern terminus of SR 105 |
| Carroll | ​ | 51.0 | 82.1 | SR 436 north – McKenzie | Southern terminus of SR 436 |
| Carroll | Huntingdon | 56.8 | 91.4 | SR 22 south (Veterans Drive S) – Clarksburg, Lexington | Western end of SR 22 concurrency |
| Carroll | Huntingdon | 58.3 | 93.8 | SR 22 north / SR 22 Bus. south (Paris Street) – McKenzie, Downtown | Eastern end of SR 22 concurrency; northern terminus of SR 22 Business |
| Carroll | Huntingdon | 60.2 | 96.9 | SR 77 east (Gordon Browning Highway) – Paris SR 364 begins | Eastern end of SR 77 concurrency; eastern terminus of SR 364; western end of wrong-way SR 364 concurrency |
| Carroll | Huntingdon | 61.7 | 99.3 | US 70 / US 70 Bus. west (E Main Street/Veteran Drive S/SR 1/SR 364 west) – Jackson, Downtown, Hollow Rock, Bruceton | Eastern terminus of US 70A and US 70 Business; interchange; unsigned SR 364 continues along US 70 west |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus ||||||

## Humboldt bypass route

U.S. Route 70A Bypass (US 70 Bypass or US 70A Byp.) is a bypass route of US 70A in Humboldt, Tennessee. It runs concurrently with US 79 Bypass and unsigned SR 366 for its entire length.
The highway begins as a two-lane highway at an interchange with US 70A/US 79 (W Main Street/SR 76 at the southwestern edge of town. It heads north through some industrial areas, where it has an intersection with SR 152. The highway then curves to the east through more industrial areas to cross a railroad overpass and enter a business district and come to an intersection with US 45W and US 45W Business (N Central Avenue/SR 5), where it widens to a four-lane highway and US 45W joins the highway. They then pass through some neighborhoods, where they cross over another railroad overpass, before US 70A Bypass/US 79 Bypass come to an end at an intersection with US 70A/US 79 (Eastend Drive/SR 76), with the Humboldt Bypass, and unsigned SR 366, continuing south along US 45W.
The entire route is in Humboldt, Gibson County.
| mi | km | Destinations | Notes |
| 0.0 | 0.0 | US 70A / US 79 (W Main Street/SR 76) – McKenzie, Gadsden, Downtown | Western terminus of US 70A Bypass and unsigned SR 366; southern terminus of US 79 Bypass; interchange; western end of US 79 Bypass/SR 366 concurrency |
| 1.1 | 1.8 | SR 152 (McLin Street) – Maury City, Downtown | |
| 2.8 | 4.5 | US 45W north / US 45W Bus. south (N Central Avenue/SR 5) – Trenton, Downtown | Western end of US 45W concurrency; northern terminus of US 45W Business |
| 3.9 | 6.3 | US 70A / US 79 (Eastend Drive/SR 76) – Downtown, Gibson, Milan US 45W south (SR 366 east) – Three Way, Jackson | Eastern terminus of US 70A Bypass; northern terminus of US 79 Bypass |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus ||||