U.S. Route 380

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U.S. Route 380

US 380 highlighted in red
Route information
Auxiliary route of US 80
Maintained by NMDOT and TxDOT
Length673 mi (1,083 km)
History1926–1931: US 566
Major junctions
West end I-25 / US 85 in San Antonio, NM
Major intersections US 54 in Carrizozo, NM

US 70 in Hondo, NM
US 70 in Roswell, NM
US 285 in Roswell, NM
US 81 / US 287 in Decatur, TX
I-35 in Denton, TX
US 77 / US 377 in Denton, TX
US 377 in Cross Roads, TX
Dallas North Tollway in Frisco, TX

US 75 in McKinney, TX
East end I-30 / US 67 / US 69 in Greenville, TX
CountryUnited States
StatesNew Mexico, Texas
Highway system

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 Border 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.

US 380 at the intersection of US 70 and US 285 in Roswell.

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.


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.

US 380 west of Tahoka, Texas

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.

US 380 in Rule, Texas

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.


U.S. Highway 566

LocationRuidoso, New MexicoSocorro, New Mexico

When US 380 was commissioned in 1931, it took over the entire former route of U.S. Route 566,[1] 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 border 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,[2] 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. [3]

Major intersections

New MexicoSocorro0.0000.000 I-25 (US 85) – Las Cruces, SocorroWestern terminus; I-25 exit 139
San Antonio NM 1 – Luis Lopez, El Camino Real IHC, Bosque del Apache National Wildlife Refuge, Fort Craig

NM 525 south
LincolnCarrizozo US 54 – Vaughn, Tularosa
NM 37 – Nogal, Ruidoso
NM 48 south (South Lincoln Avenue) / NM 246 (Pine Lodge Road) – Ruidoso
NM 220 – Fort Stanton, Sierra Blanca Regional Airport, Fort Stanton Museum
US 70 west – Ruidoso
West end of US 70 overlap
Tinnie NM 368 – Arabela

US 70 Truck east / US 285 Truck (Relief Route) – Roswell International Air Center

US 70 east / US 285 (Main Street) – Vaughn, Artesia, NMMI
East end of US 70 overlap
NM 254 – East Grand Plains
NM 409 – Bottomless Lakes State Park
NM 172 – Maljamar

NM 457 south to US 82 – Artesia
Tatum NM 206 – Portales, Lovington
NM 125 – Bledsoe
New MexicoTexas lineLeaYoakum county line FM 769
US 82 west – Lovington
West end of US 82 overlap
See US 82

US 62 east / US 82 east / US 385 north (North Lubbock Highway) – Lubbock
East end of US 62 / US 82 / US 385 overlap

FM 168 north
West end of FM 168 overlap

FM 168 south
East end of FM 168 overlap
LynnWest Point FM 179 – Wolfforth, Lamesa

FM 1328 north

FM 3112 south
Tahoka Loop 472 (North Main Street)
US 87Interchange

FM 2956 south

FM 1054 north
West end of FM 1054 overlap

FM 1054 south – Draw
East end of FM 1054 overlap
FM 212
FM 399 north
West end of FM 399 overlap

FM 399 south
East end of FM 399 overlap
FM 669 south (Avenue M) – Gail

US 84 east (Avenue J) – Snyder
West end of US 84 overlap

US 84 west (Avenue J) – Lubbock
East end of US 84 overlap

SH 207 north / Loop 46 south / FM 651 north (Avenue F)

FM 2008 north
FM 1081 north

SH 208 south – Snyder
West end of SH 208 overlap
SH 208 north – Spur
East end of SH 208 overlap

SH 70 south – Rotan
West end of SH 70 overlap

FM 1083 north

SH 70 north – Jayton, Spur
East end of SH 70 overlap
FM 2211 east – Peacock
FM 1416 north

US 83 north – Guthrie
West end of US 83 overlap
FM 1263 north (North Second Street)

US 83 south / FM 610 west – Hamlin, Rotan
East end of US 83 overlap

FM 3457 north

SH 283 east – Stamford, Sagerton
Old Glory
Loop 128 east – Old Glory
FM 1835

Loop 128 west – Old Glory
FM 617 east
SH 6 – Rochester, Stamford

FM 2407 west
Bus. US 277 – Weinert, Stamford
US 277 – Weinert, StamfordInterchange

FM 600 south – Paint Creek

FM 618 south – Paint Creek, Lake Stamford

FM 266 north
SH 222 north – Munday

FM 2651 north

FM 923 south
US 183 / US 283 / SH 79 north – Seymour, Albany, Breckenridge

FM 1711 north – Elbert

FM 578 north to SH 79
West end of FM 578 overlap

FM 578 south – Breckenridge
East end of FM 578 overlap

FM 61 east – Fort Belknap

FM 926 west to SH 251 – Olney

FM 1769 north – Jean
SH 16 north
West end of SH 16 overlap

SH 16 south (Elm Street) / SH 67 south
East end of SH 16 overlap

FM 3491 north (Cliff Drive)

FM 2179 south

FM 2075 west
FM 3209 south

FM 1191 south
West end of FM 1191 overlap

FM 1191 north – Jermyn
East end of FM 1191 overlap

FM 4 south – Graford

US 281 north / SH 114 west (Main Street) / SH 59 north (Belknap Street)
West end of US 281 / SH 114 / SH 199 overlap
PR 61 – Fort Richardson State Park

US 281 south / SH 199 east – Mineral Wells, Fort Worth
East end of US 281 / SH 199 overlap

FM 1156 north – Wizard Wells
Vineyard FM 1156 – Wizard Wells, Joplin
FM 1658 north
FM 1658 – Bridgeport

SH 114 east / SH 101 north – Rhome
East end of SH 114 overlap
Loop 373 – Bridgeport

FM 1655 north – Alvord, Weatherford College

Bus. US 380 east to FM 51 south – Decatur
US 81 / US 287 – Wichita Falls, Fort WorthInterchange
FM 730 – Decatur AirportInterchange
FM 51 – Gainesville, WeatherfordInterchange

Bus. US 380 west
FM 2622 south – Stony
FM 156 – Krum, Ponder, Fort WorthInterchange
I-35 / US 380 Truck – Gainesville, Dallas
I-35 exit 469

US 77 south / US 377 south (North Elm Street)
West end of US 377 south overlap (westbound)

US 77 north (North Locust Street) to FM 428
West end of US 377 north overlap (eastbound)

Loop 288 / US 380 Truck west
Cross Roads
US 377 north – Pilot Point
Interchange; east end of US 377 overlap

FM 424 north – Aubrey
Lincoln Park
FM 720 east – Oak Point, Little Elm
Providence VillageLittle Elm line
FM 2931 north – Providence Village
Little ElmProsper line
FM 1385 north
FriscoProsper line
FM 423 south – Frisco, Little Elm, The Colony
CollinFriscoProsper line
To Dallas Parkway south / Dallas North Tollway

SH 289 (Preston Road) / Bus. SH 289 north – Prosper, Frisco
ProsperMcKinney line FM 2478 (Custer Road) – Prosper, McKinney, Plano
To Lake Forest Drive / FM 1461
US 75 / SH 121 (North Central Expressway) – Sherman, DallasUS 75 exit 41
SH 5 (McDonald Street) – Melissa, Fairview

FM 1827 north – New Hope
FM 982 south

FM 75 north (South 4th Street)
Farmersville SH 78 – Lavon, Blue RidgeInterchange
Main StreetInterchange

FM 547 south – Josephine
FM 36 north – Merit
West end of FM 36 overlap

Bus. US 380 east

FM 36 south / County Road 1118 – Floyd, Caddo Mills
East end of FM 36 overlap

Bus. US 380 west

FM 903 north – Wagner

US 69 north / Spur 302 east – Greenville, Denison
West end of US 69 overlap

SH 66 west – Caddo Mills
SH 34 (Wesley Street) – Greenville, Terrell

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

Related routes


  1. ^ a b c "New Mexico Highway Changes Announced". El Paso Herald-Post. August 8, 1931. p. 5. Retrieved June 3, 2017 – via Newspapers.com.
  2. ^ "'It's Just Horrific': 3 Dead After Head-On Crash on Highway 380 in Denton". May 23, 2021.
  3. ^ "Mom calls for change on deadly stretch of highway".
Browse numbered routes
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