U.S. Route 380

U.S. Highway 566
U.S. Highway 566
Location	Ruidoso, New Mexico–Socorro, New Mexico
Existed	1926–1931

U.S. Route 380
U.S. Route 380
	US 380 highlighted in red
Route information
	Auxiliary route of US 80
	Maintained by NMDOT and TxDOT
Length	673 mi (1,083 km)
Existed	1931–present
History	1926–1931: US 566
Major junctions
West end	I-25 / US 85 in San Antonio, NM
	US 54 in Carrizozo, NM; US 70 in Roswell, NM; US 285 in Roswell, NM; US 87 in Tahoka, TX; US 281 in Jacksboro, TX; US 81 / US 287 in Decatur, TX; I-35 in Denton, TX; US 77 / US 377 in Denton, TX; Dallas North Tollway in Frisco, TX; US 75 in McKinney, TX;
East end	I-30 / US 67 / US 69 in Greenville, TX
Location
Country	United States
States	New Mexico, Texas
Highway system
	United States Numbered Highway System; List; Special; Divided;

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,^[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 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,^[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

State	County	Location	km	Destinations	Notes
New Mexico	Socorro			I-25 (US 85) – Las Cruces, Socorro	Western 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
	Lincoln	Carrizozo		US 54 – Vaughn, Tularosa
				NM 37 – Nogal, Ruidoso
		Capitan		NM 48 south (South Lincoln Avenue) / NM 246 (Pine Lodge Road) – Ruidoso
				NM 220 – Fort Stanton, Sierra Blanca Regional Airport, Fort Stanton Museum
		Hondo		US 70 west – Ruidoso	West end of US 70 overlap
		Tinnie		NM 368 – Arabela
	Chaves	Roswell		US 70 Truck east / US 285 Truck (Relief Route) – Roswell International Air Center
		Roswell		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
	Lea			NM 457 south to US 82 – Artesia
		Tatum		NM 206 – Portales, Lovington
				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
	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
				FM 168 north	West end of FM 168 overlap
				FM 168 south	East end of FM 168 overlap
	Lynn	West Point		FM 179 – Wolfforth, Lamesa
				FM 1328 north
				FM 3112 south
		Tahoka		Loop 472 (North Main Street)
		Tahoka		US 87	Interchange
				FM 2956 south
				FM 1054 north	West end of FM 1054 overlap
				FM 1054 south – Draw	East end of FM 1054 overlap
				FM 212
	Garza			FM 399 north	West end of FM 399 overlap
				FM 399 south	East end of FM 399 overlap
		Post		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
	Kent			FM 1081 north
				SH 208 south – Snyder	West end of SH 208 overlap
		Clairemont		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
	Stonewall			FM 2211 east – Peacock
		Swenson		FM 1416 north
				US 83 north – Guthrie	West end of US 83 overlap
		Aspermont		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
	Haskell	Rule		FM 617 east
		Rule		SH 6 – Rochester, Stamford
				FM 2407 west
		Haskell		Bus. US 277 – Weinert, Stamford
				US 277 – Weinert, Stamford	Interchange
				FM 600 south – Paint Creek
				FM 618 south – Paint Creek, Lake Stamford
				FM 266 north
	Throckmorton			SH 222 north – Munday
				FM 2651 north
				FM 923 south
		Throckmorton		US 183 / US 283 / SH 79 north – Seymour, Albany, Breckenridge
				FM 1711 north – Elbert
	Young			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
		Newcastle		FM 926 west to SH 251 – Olney
				FM 1769 north – Jean
		Graham		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
	Jack	Bryson		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
Jacksboro			US 281 north / SH 114 west (Main Street) / SH 59 north (Belknap Street)	West end of US 281 / SH 114 / SH 199 overlap
Jacksboro			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
Wise	Bridgeport		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
	Decatur		Bus. US 380 east to FM 51 south – Decatur
			US 81 / US 287 – Wichita Falls, Fort Worth	Interchange
			FM 730 – Decatur Airport	Interchange
			FM 51 – Gainesville, Weatherford	Interchange
			Bus. US 380 west
Denton			FM 2622 south – Stony
			FM 156 – Krum, Ponder, Fort Worth	Interchange
	Denton		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	Interchange
	Cross Roads		US 377 north – Pilot Point	Interchange; east end of US 377 overlap
	Cross Roads		FM 424 north – Aubrey
	Lincoln Park		FM 720 east – Oak Point, Little Elm
	Providence Village–Little Elm line		FM 2931 north – Providence Village
	Little Elm–Prosper line		FM 1385 north
	Frisco–Prosper line		FM 423 south – Frisco, Little Elm, The Colony
Collin	Frisco–Prosper line		To Dallas Parkway south / Dallas North Tollway
	Frisco–Prosper line		SH 289 (Preston Road) / Bus. SH 289 north – Prosper, Frisco	Interchange
	Prosper–McKinney line		FM 2478 (Custer Road) – Prosper, McKinney, Plano
	McKinney		To Lake Forest Drive / FM 1461
			US 75 / SH 121 (North Central Expressway) – Sherman, Dallas	US 75 exit 41
			SH 5 (McDonald Street) – Melissa, Fairview
			FM 1827 north – New Hope
	Princeton		FM 982 south
	Princeton		FM 75 north (South 4th Street)
	Farmersville		SH 78 – Lavon, Blue Ridge	Interchange
	Farmersville		Main Street	Interchange
			FM 547 south – Josephine
Hunt			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
	Greenville		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