# U.S. Route 380

U.S. Route 380 (US 380) is an east–west United States highway. The highway's eastern terminus is in Greenville, Texas at an intersection with Interstate 30, of which the easternmost 3–4 miles are concurrent with US 69 in a loop around the west and south sides of Greenville. Its western terminus is at San Antonio, New Mexico, south of Socorro at an intersection with Interstate 25. It intersected with its parent, U.S. Route 80, at Cisco until 1971, when it was rerouted along the former SH 24 from that highway's western terminus near Old Glory to Greenville. Former U.S. Route 380 from Cisco to near Old Glory became an extension of SH 6. The highway no longer connects to any x80 route. US 380 passes through some of the far northern suburbs of the Dallas/Fort Worth Metroplex, including (from west to east) Denton, Frisco, McKinney and Princeton. The portion in Texas from the New Mexico state line to Jayton was SH 84 before 1939. Its spur, SH 84A, went from Jayton to Aspermont, until 1930, when it became SH 161.

## Route description
### New Mexico

US Route 380 begins at an intersection with Interstate 25 just west of San Antonio, New Mexico, and travels through town, meeting the old route of US 85, now New Mexico State Road 1. It then travels generally east, and marks the northern edge of the White Sands Missile Range. The road then turns southeast, crossing the Carrizozo Malpais before reaching Carrizozo, meeting U.S. Route 54. The route continues southeast, climbing the Sacramento Mountains, and going through the town of Capitan and briefly travelling through the Lincoln National Forest, before reaching U.S. Route 70 at Hondo and becoming concurrent with US 70.
These routes continue eastward, next reaching Roswell, New Mexico. US 380 splits with US 70 in Roswell, then crossing U.S. Route 285 in Roswell before continuing east across oil-producing areas of the Llano Estacado of east New Mexico and the Texas South Plains.

### Texas

US 380 enters Texas at a crossing with Farm to Market Road 769, travelling generally due east before meeting up with US Route 82 in Plains. They continue east passing the former locations of Tokio and Gomez before reaching Brownfield. In Brownfield, it meets US Routes 62 and 385, and all 4 routes coincide for 3 blocks through the center of town before US 380 splits to the east.
The route continues due east through Texas South Plains farmland, passing through Tahoka, before falling off the Llano Estacado and reaching Post. The highway then meanders east through rural Garza and Kent Counties before reaching the ghost town of Clairemont. The route then travels east, where it meets Texas State Highway 70, which both then turn northeast until reaching Jayton, where US 380 takes a sharp turn back to the southeast. The road then travels through several thousand acres of private ranchland in Kent and Stonewall Counties before reaching Swenson.
The route continues to the southeast, reaching an intersection with US 83, where both continue southeast into the town of Aspermont. The route continues to the east and northeast through the communities of Old Glory, Rule, Haskell, Throckmorton, and Newcastle, before crossing Lake Graham and reaching the city of Graham.
US 380 continues to the east and northeast through Bryson before reaching an intersection with US Route 281 and Texas State Highway 114 in Jacksboro. US 281 departs southward out of town, while US 380 and TX 114 depart east south of Jacksboro, crossing Lake Bridgeport before reaching the city of Bridgeport. US 380 then travels due east toward the city of Decatur.
US 380 exits to the east and reaches an intersection with Interstate 35 on the west end of Denton where it is known as University Drive. US 380 continues through the city of Denton, intersecting US Route 77 and US 377 near Texas Woman's University, before continuing east with US 377. The routes cross the very northern edge of Lake Lewisville before US 377 departs off to the north. US 380 continues east through the town of Cross Roads and the city of Little Elm. Then US380 meets the northern terminus of the Dallas North Tollway in Frisco, before reaching McKinney, where it is also known as University Drive. The route then continues east, passing through Princeton before crossing the northern fringe of Lake Lavon, and reaching Farmersville, where it is signed as the Audie Murphy Parkway. The route again continues east, passing just south of Floyd, before reaching an intersection with US Route 69 on the far western edge of Greenville. Both of those routes then follow a loop around the south end of Greenville, before reaching the routes eastern terminus at an intersection with Interstate 30 and US Route 67.

## Special routes

The route has two special routes, both business routes in Texas.

### U.S. Route 380 Business - F

This is the former route of US 380 through the city of Decatur. The route was bypassed in 1987, with the old route being renamed Texas State Highway Loop 569. The route was re-designated as the business route in 1991.

### U.S. Route 380 Business - J

This is the former route of US 380 through the town of Floyd. The route was bypassed in 1968, when the route was still known as Texas State Highway 24, with the old routing being designated as Texas State Highway Loop 462. The route was re-designated as the business route in 1991.

## History

When US 380 was commissioned in 1931, it took over the entire former route of U.S. Route 566, an original 1926 route. The entire route of US 566 was within the state of New Mexico, from an intersection with (modern day New Mexico State Road 48) and (modern-day US 70) east of Ruidoso to US 85 (originally planned as US 466) in Socorro, New Mexico. US 566 never intersected with its nominal parent, U.S. Route 66 although it temporarily connected to that parent indirectly via U.S. Route 366.
The section of highway from the New Mexico state line to Jayton was previously SH 84. A spur route, SH 84A, went from Jayton to Aspermont, being changed to Texas State Highway 161 in 1930.
US 380 east of Denton, and west of McKinney, has had numerous fatal vehicle accidents, per public statements by law enforcement and fire department officials. This is believed to be attributed by the lack of a center median, high traffic volume, and excessive speeds.

## Major intersections

| State | County | Location | Destinations | Notes |
| New Mexico | Socorro | ​ | I-25 (US 85) – Las Cruces, Socorro | Western terminus; I-25 exit 139 |
| New Mexico | Socorro | San Antonio | NM 1 – Luis Lopez, El Camino Real IHC, Bosque del Apache National Wildlife Refuge, Fort Craig | |
| New Mexico | Socorro | ​ | NM 525 south | |
| New Mexico | Lincoln | Carrizozo | US 54 – Vaughn, Tularosa | |
| New Mexico | Lincoln | ​ | NM 37 – Nogal, Ruidoso | |
| New Mexico | Lincoln | Capitan | NM 48 south (South Lincoln Avenue) / NM 246 (Pine Lodge Road) – Ruidoso | |
| New Mexico | Lincoln | ​ | NM 220 – Fort Stanton, Sierra Blanca Regional Airport, Fort Stanton Museum | |
| New Mexico | Lincoln | Hondo | US 70 west – Ruidoso | West end of US 70 overlap |
| New Mexico | Lincoln | Tinnie | NM 368 – Arabela | |
| New Mexico | Chaves | Roswell | US 70 Truck east / US 285 Truck (Relief Route) – Roswell International Air Center | |
| New Mexico | Chaves | Roswell | US 70 east / US 285 (Main Street) – Vaughn, Artesia, NMMI | East end of US 70 overlap |
| New Mexico | Chaves | ​ | NM 254 – East Grand Plains | |
| New Mexico | Chaves | ​ | NM 409 – Bottomless Lakes State Park | |
| New Mexico | Chaves | ​ | NM 172 – Maljamar | |
| New Mexico | Lea | ​ | NM 457 south to US 82 – Artesia | |
| New Mexico | Lea | Tatum | NM 206 – Portales, Lovington | |
| New Mexico | Lea | ​ | NM 125 – Bledsoe | |
| New Mexico–Texas line | Lea–Yoakum county line | ​ | FM 769 | |
| Texas | Yoakum | Plains | US 82 west – Lovington | West end of US 82 overlap |
| See US 82 |||||||
| Texas | Terry | Brownfield | US 62 east / US 82 east / US 385 north (North Lubbock Highway) – Lubbock | East end of US 62 / US 82 / US 385 overlap |
| Texas | Terry | ​ | FM 168 north | West end of FM 168 overlap |
| Texas | Terry | ​ | FM 168 south | East end of FM 168 overlap |
| Texas | Lynn | West Point | FM 179 – Wolfforth, Lamesa | |
| Texas | Lynn | ​ | FM 1328 north | |
| Texas | Lynn | ​ | FM 3112 south | |
| Texas | Lynn | Tahoka | Loop 472 (North Main Street) | |
| Texas | Lynn | Tahoka | US 87 | Interchange |
| Texas | Lynn | ​ | FM 2956 south | |
| Texas | Lynn | ​ | FM 1054 north | West end of FM 1054 overlap |
| Texas | Lynn | ​ | FM 1054 south – Draw | East end of FM 1054 overlap |
| Texas | Lynn | ​ | FM 212 | |
| Texas | Garza | ​ | FM 399 north | West end of FM 399 overlap |
| Texas | Garza | ​ | FM 399 south | East end of FM 399 overlap |
| Texas | Garza | Post | FM 669 south (Avenue M) – Gail | |
| Texas | Garza | Post | US 84 east (Avenue J) – Snyder | West end of US 84 overlap |
| Texas | Garza | Post | US 84 west (Avenue J) – Lubbock | East end of US 84 overlap |
| Texas | Garza | Post | SH 207 north / Loop 46 south / FM 651 north (Avenue F) | |
| Texas | Garza | ​ | FM 2008 north | |
| Texas | Kent | ​ | FM 1081 north | |
| Texas | Kent | ​ | SH 208 south – Snyder | West end of SH 208 overlap |
| Texas | Kent | Clairemont | SH 208 north – Spur | East end of SH 208 overlap |
| Texas | Kent | ​ | SH 70 south – Rotan | West end of SH 70 overlap |
| Texas | Kent | ​ | FM 1083 north | |
| Texas | Kent | ​ | SH 70 north – Jayton, Spur | East end of SH 70 overlap |
| Texas | Stonewall | ​ | FM 2211 east – Peacock | |
| Texas | Stonewall | Swenson | FM 1416 north | |
| Texas | Stonewall | ​ | US 83 north – Guthrie | West end of US 83 overlap |
| Texas | Stonewall | Aspermont | FM 1263 north (North Second Street) | |
| Texas | Stonewall | Aspermont | US 83 south / FM 610 west – Hamlin, Rotan | East end of US 83 overlap |
| Texas | Stonewall | Aspermont | FM 3457 north | |
| Texas | Stonewall | ​ | SH 283 east – Stamford, Sagerton | |
| Texas | Stonewall | Old Glory | Loop 128 east – Old Glory | |
| Texas | Stonewall | Old Glory | FM 1835 | |
| Texas | Stonewall | Old Glory | Loop 128 west – Old Glory | |
| Texas | Haskell | Rule | FM 617 east | |
| Texas | Haskell | Rule | SH 6 – Rochester, Stamford | |
| Texas | Haskell | ​ | FM 2407 west | |
| Texas | Haskell | Haskell | Bus. US 277 – Weinert, Stamford | |
| Texas | Haskell | Haskell | US 277 – Weinert, Stamford | Interchange |
| Texas | Haskell | Haskell | FM 600 south – Paint Creek | |
| Texas | Haskell | ​ | FM 618 south – Paint Creek, Lake Stamford | |
| Texas | Haskell | ​ | FM 266 north | |
| Texas | Throckmorton | ​ | SH 222 north – Munday | |
| Texas | Throckmorton | ​ | FM 2651 north | |
| Texas | Throckmorton | ​ | FM 923 south | |
| Texas | Throckmorton | Throckmorton | US 183 / US 283 / SH 79 north – Seymour, Albany, Breckenridge | |
| Texas | Throckmorton | ​ | FM 1711 north – Elbert | |
| Texas | Young | ​ | FM 578 north to SH 79 | West end of FM 578 overlap |
| Texas | Young | ​ | FM 578 south – Breckenridge | East end of FM 578 overlap |
| Texas | Young | ​ | FM 61 east – Fort Belknap | |
| Texas | Young | Newcastle | FM 926 west to SH 251 – Olney | |
| Texas | Young | ​ | FM 1769 north – Jean | |
| Texas | Young | Graham | SH 16 north | West end of SH 16 overlap |
| Texas | Young | Graham | SH 16 south (Elm Street) / SH 67 south | East end of SH 16 overlap |
| Texas | Young | Graham | FM 3491 north (Cliff Drive) | |
| Texas | Young | Graham | FM 2179 south | |
| Texas | Young | ​ | FM 2075 west | |
| Texas | Jack | Bryson | FM 3209 south | |
| Texas | Jack | Bryson | FM 1191 south | West end of FM 1191 overlap |
| Texas | Jack | Bryson | FM 1191 north – Jermyn | East end of FM 1191 overlap |
| Texas | Jack | ​ | FM 4 south – Graford | |
| Texas | Jack | Jacksboro | US 281 north / SH 114 west (Main Street) / SH 59 north (Belknap Street) | West end of US 281 / SH 114 / SH 199 overlap |
| Texas | Jack | Jacksboro | PR 61 – Fort Richardson State Park | |
| Texas | Jack | ​ | US 281 south / SH 199 east – Mineral Wells, Fort Worth | East end of US 281 / SH 199 overlap |
| Texas | Jack | ​ | FM 1156 north – Wizard Wells | |
| Texas | Jack | Vineyard | FM 1156 – Wizard Wells, Joplin | |
| Texas | Wise | Bridgeport | FM 1658 north | |
| Texas | Wise | Bridgeport | FM 1658 – Bridgeport | |
| Texas | Wise | Bridgeport | SH 114 east / SH 101 north – Rhome | East end of SH 114 overlap |
| Texas | Wise | Bridgeport | Loop 373 – Bridgeport | |
| Texas | Wise | ​ | FM 1655 north – Alvord, Weatherford College | |
| Texas | Wise | Decatur | Bus. US 380 east to FM 51 south – Decatur | |
| Texas | Wise | Decatur | US 81 / US 287 – Wichita Falls, Fort Worth | Interchange |
| Texas | Wise | Decatur | FM 730 – Decatur Airport | Interchange |
| Texas | Wise | Decatur | FM 51 – Gainesville, Weatherford | Interchange |
| Texas | Wise | Decatur | Bus. US 380 west | |
| Texas | Denton | ​ | FM 2622 south – Stony | |
| Texas | Denton | ​ | FM 156 – Krum, Ponder, Fort Worth | Interchange |
| Texas | Denton | Denton | I-35 / US 380 Truck – Gainesville, Dallas | I-35 exit 469 |
| Texas | Denton | Denton | US 77 south / US 377 south (North Elm Street) | West end of US 377 south overlap (westbound) |
| Texas | Denton | Denton | US 77 north (North Locust Street) to FM 428 | West end of US 377 north overlap (eastbound) |
| Texas | Denton | Denton | Loop 288 / US 380 Truck west | Interchange |
| Texas | Denton | Cross Roads | US 377 north – Pilot Point | Interchange; east end of US 377 overlap |
| Texas | Denton | Cross Roads | FM 424 north – Aubrey | |
| Texas | Denton | Lincoln Park | FM 720 east – Oak Point, Little Elm | |
| Texas | Denton | Providence Village–Little Elm line | FM 2931 north – Providence Village | |
| Texas | Denton | Little Elm–Prosper line | FM 1385 north | |
| Texas | Denton | Frisco–Prosper line | FM 423 south – Frisco, Little Elm, The Colony | |
| Texas | Collin | Frisco–Prosper line | To Dallas Parkway south / Dallas North Tollway | |
| Texas | Collin | Frisco–Prosper line | SH 289 (Preston Road) / Bus. SH 289 north – Prosper, Frisco | Interchange |
| Texas | Collin | Prosper–McKinney line | FM 2478 (Custer Road) – Prosper, McKinney, Plano | |
| Texas | Collin | McKinney | To Lake Forest Drive / FM 1461 | |
| Texas | Collin | McKinney | US 75 / SH 121 (North Central Expressway) – Sherman, Dallas | US 75 exit 41 |
| Texas | Collin | McKinney | SH 5 (McDonald Street) – Melissa, Fairview | |
| Texas | Collin | McKinney | FM 1827 north – New Hope | |
| Texas | Collin | Princeton | FM 982 south | |
| Texas | Collin | Princeton | FM 75 north (South 4th Street) | |
| Texas | Collin | Farmersville | SH 78 – Lavon, Blue Ridge | Interchange |
| Texas | Collin | Farmersville | Main Street | Interchange |
| Texas | Collin | ​ | FM 547 south – Josephine | |
| Texas | Hunt | ​ | FM 36 north – Merit | West end of FM 36 overlap |
| Texas | Hunt | ​ | Bus. US 380 east | |
| Texas | Hunt | ​ | FM 36 south / County Road 1118 – Floyd, Caddo Mills | East end of FM 36 overlap |
| Texas | Hunt | ​ | Bus. US 380 west | |
| Texas | Hunt | ​ | FM 903 north – Wagner | |
| Texas | Hunt | Greenville | US 69 north / Spur 302 east – Greenville, Denison | West end of US 69 overlap |
| Texas | Hunt | Greenville | SH 66 west – Caddo Mills | |
| Texas | Hunt | Greenville | SH 34 (Wesley Street) – Greenville, Terrell | |
| Texas | Hunt | Greenville | I-30 / US 67 / US 69 south – Emory, Texarkana, Dallas | Eastern terminus; east end of US 69 overlap; I-30 exit 94 |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi |||||||