# U.S. Route 377

U.S. Route 377 (US 377) is a 478-mile-long (769 km) north–south United States highway. Originally formed as a short spur to connect Denton and Fort Worth, Texas, it has since been extended northward into Oklahoma and southward to Del Rio, Texas, near the U.S. border with Mexico.

## Route description
### Texas

The southern terminus is in Del Rio, Texas at an intersection with U.S. Route 90. It goes north of town co-signed with U.S. Route 277 for 20 miles (32 km). After splitting off, it enters Edwards County and Carta Valley. It meets SH 55 at the county seat, Rocksprings, before serving as the western terminus of SH 41. About 20 miles north of Rocksprings, the route meets with the headwaters of the South Llano River, which follows the route into Junction, Texas. It heads northeast into Kimble County, crossing the county line near Telegraph. At Junction, it meets both Interstate 10 and US 83. It then continues northeast through London, extreme southeastern Menard County, and Mason County. In Mason County, US 377 passes through Streeter before forming a concurrency with SH 29 near Grit. In Mason, SH 29 splits off to its own alignment while US 377 turns north to join U.S. Route 87.
US 87/377 head north together into Brady, where they meet US 190, the southern terminus of US 283, and SH 71. US 377 splits off to the north and heads to Mercury and crosses the Colorado River near Winchell. In Brownwood, US 377 joins with U.S. Route 67, following its routing all the way to Stephenville, where US 377 splits off on its own again. US 377 then enters Hood County, where it passes through the county seat, Granbury. It cuts the corners of both Johnson County and Parker County before entering Tarrant County and the Dallas-Fort Worth Metroplex.
US 377 crosses Interstate 20 at exit 429A in Benbrook. It then enters Fort Worth proper, meeting SH 183 and Spur 580. It runs northeast on Camp Bowie Blvd. to Interstate 30, which it begins a concurrency with. At the Interstate 35W junction, it heads north along that highway before splitting off at Exit 52A (Belknap St.). It heads due north at the Denton Highway and continues to run parallel to I-35W through many Fort Worth suburbs, including Haltom City, Watauga, Keller, Westlake, Roanoke, and Argyle. In Denton, it crosses Interstate 35E and has a brief concurrency with US 380 through the eastern portion of Denton into Crossroads.
After splitting from US 380, US 377 runs through Crossroads and north into Krugerville. It continues through Aubrey, through Pilot Point, Tioga, and Collinsville, before having an interchange with US 82 at Whitesboro. It the heads north to cross Lake Texoma (the Red River) into Oklahoma.

### Oklahoma

US 377 is co-signed with State Highway 99 for its entire Oklahoma length. US 377's first junction within Oklahoma is with SH-32 west of Kingston. The first town that US 377/SH-99 pass through is Madill, where the two highways meet US 70 and State Highway 199. The next town after that is Tishomingo, where there is a brief concurrency with SH-22. US 377/SH-99 run north from Tishomingo, having a one-mile (1.6 km) three-route concurrency with SH-7 before meeting State Highway 3 southeast of Ada. US 377/SH-99 run around the east and north sides of town. On the north side of Ada, SH-3E joins the concurrency.
After leaving Ada, US 377/SH-3E/99 pass through Byng. The three highways cross the Canadian River just south of a junction that serves as the eastern terminus of SH-39 and the western terminus of SH-56. North of Bowlegs, SH-59 joins with the other routes briefly. The next major town is Seminole, where the highways meet SH-9, and SH-3E splits off. US 377/SH-99 cross I-40 at Exit 200. The highways have a junction with US 62 in Prague.
As of 2007, the highway's northern terminus is in Stroud, Oklahoma at an indeterminate point somewhere between old Route 66 (now Oklahoma State Highway 66) and modern Interstate 44. SH-99 continues north into Kansas.

## History
### U.S. 377 in Texas

When US 377 was commissioned in 1930, US 77 connected Dallas, Texas, with the north and south, but nearby Fort Worth lacked a direct northern connection. US 377 formed a short (less than 40-mile [65 km]) connection between US 77 in Denton and US 81 in Fort Worth. Along with a section of US 81, it provided a parallel north–south route to US 77 between Denton and Hillsboro, where US 81 met US 77. When the Interstate Highway System was built, I-35 included a similar Dallas–Fort Worth split with routes I-35E through Dallas (along US 77) and I-35W through Fort Worth (along to US 377 and US 81).
In 1931, US 377 was extended to southwest from Fort Worth to Stephenville , and in 1951, it was extended south from Stephenville to its current terminus in Del Rio.
The section of US 377 in Texas north of Denton was signed as SH 10 until 1960 and SH 99 from 1960 until 1968. The American Association of State Highway Officials (AASHO, later the American Association of State Highway and Transpiration Officiations, AASHTO), the body which coordinates the numbering of U.S. Highways, approved an extension of US 377 from Denton into Oklahoma in 1968 and signs went up for this section in 1969.
US 377 long remained a two-lane highway between Denton and Fort Worth, but has since been widened with more construction scheduled. North of Denton, US 377 is currently two lanes.

### U.S. 377 in Oklahoma

US 377 in Oklahoma was predated by Oklahoma State Highway 99, with which it still runs concurrently. The Oklahoma Department of Highways had proposed portions of SH-99 for inclusion in the United States Numbered Highway System several times. One such application made in 1953 suggested that the entirety of SH-99 become a U.S. Route, while another suggested a northern terminus at US 64 near Cleveland. On June 18, 1964, AASHO accepted an extension of US 377 from the Texas state line, but only 17 miles (25 km) to US 70 in Madill. This extension was not marked on Oklahoma official state highway maps.
The Department of Highways, and later the Department of Transportation, submitted applications to extend US 377 from Madill to US 64 in Cleveland eight times between December 1964 and 1980, all of which were rejected for unknown reasons. In 1988, ODOT began signing US 377 from Madill to Stroud along SH-99 without AASHTO approval.
The Willis Bridge crossing Lake Texoma on the Red River was constructed in 1960. By the late 2010s, it had guardrail damage causing the remaining bridge to be very narrow and was considered structurally deficient. Parts of the bridge had collapsed. An original estimated start for replacement bridge was February 2018, costing $80 million. In November 2018, the Oklahoma Transportation Commission awarded a $43 million contract to replace the bridge with a new two-lane bridge which started construction in early January 2019. The bridge, funded by both Oklahoma and Texas, was completed in February 2023 after which the old bridge was demolished.

## Future

The US 377 Cresson Relief Route is a four-lane freeway bypass of Cresson and an at-grade railway crossing that is currently under construction and planned to open in late 2025. The project, originally planned to be opened to traffic in 2022, has faced multiple delays.

## Major intersections

| State | County | Location | mi | km | Destinations | Notes |
| Texas | Val Verde | Del Rio | 0.0 | 0.0 | US 90 east / US 277 south / Spur 239 south (East Gibbs Street) / Spur 297 south (Veteran's Boulevard) – Laughlin AFB, Brackettville, Eagle Pass, Ciudad Acuña, Business District | Southern terminus; south end of US 90/US 277 overlap |
| Texas | Val Verde | ​ | 4.4 | 7.1 | US 90 west – Comstock, Amistad NRA Visitor Information, Big Bend National Park | North end of US 90 overlap |
| Texas | Val Verde | ​ | 5.5 | 8.9 | Loop 79 to US 90 – Eagle Pass, Laredo | Interchange |
| Texas | Val Verde | ​ | 17.6 | 28.3 | RE 2 west – Amistad National Recreation Area, Rough Canyon | |
| Texas | Val Verde | ​ | 26.6 | 42.8 | US 277 north – Sonora | North end of US 277 concurrency |
| Texas | Edwards | ​ | 40.8 | 65.7 | RM 2523 south to US 90 | |
| Texas | Edwards | ​ | 72.6 | 116.8 | RM 674 south – Brackettville, Kickapoo State Park | |
| Texas | Edwards | Rocksprings | 75.7 | 121.8 | SH 55 north – Sonora | South end of SH 55 concurrency |
| Texas | Edwards | Rocksprings | 76.2 | 122.6 | SH 55 south – Uvalde | North end of SH 55 concurrency |
| Texas | Edwards | ​ | 78.1 | 125.7 | RM 2630 north | |
| Texas | Edwards | ​ | 84.2 | 135.5 | SH 41 east – Mountain Home | |
| Texas | Kimble | ​ | 118.6 | 190.9 | PR 73 – South Llano River State Park, Walter Buck WMA | |
| Texas | Kimble | Junction | 122.1 | 196.5 | FM 2169 east (Flatrock Lane) – Texas Tech University at Junction | |
| Texas | Kimble | Junction | 122.9 | 197.8 | Loop 481 east (Main Street) – Kerrville | |
| Texas | Kimble | Junction | 124.2 | 199.9 | RM 1674 west | |
| Texas | Kimble | Junction | 124.5 | 200.4 | I-10 / US 83 south – Fort Stockton, Uvalde, San Antonio, Sonora | South end of US 83 concurrency; I-10 exit 456 |
| Texas | Kimble | ​ | 125.4 | 201.8 | US 83 north – Menard | North end of US 83 concurrency |
| Texas | Kimble | ​ | 136.0 | 218.9 | FM 3480 east to RM 385 | |
| Texas | Kimble | ​ | 139.5 | 224.5 | RM 385 south to US 290 | |
| Texas | Kimble | ​ | 143.9 | 231.6 | RM 1221 north – Hext | |
| Texas | Menard | No major junctions | No major junctions | No major junctions | No major junctions | No major junctions | No major junctions | No major junctions |
| Texas | Mason | Grit | 161.7 | 260.2 | SH 29 west – Menard | South end of SH 29 overlap |
| Texas | Mason | ​ | 165.9 | 267.0 | US 87 south / SH 29 east – Llano, Mason | North end of SH 29 overlap; south end of US 87 overlap |
| see US 87 |||||||
| Texas | McCulloch | Brady | 193.2 | 310.9 | US 87 north to US 283 – San Angelo | North end of US 87 concurrency |
| Texas | McCulloch | Brady | 193.3 | 311.1 | FM 714 east (East Main Street) | |
| Texas | McCulloch | Brady | 194.1 | 312.4 | US 190 east – Rochelle, San Saba | North end of US 190 concurrency |
| Texas | McCulloch | Brady | 194.7 | 313.3 | FM 2996 north | |
| Texas | McCulloch | ​ | 199.3 | 320.7 | FM 1121 west | South end of FM 1121 overlap |
| Texas | McCulloch | ​ | 200.3 | 322.4 | FM 1121 east – Rochelle | North end of FM 1121 overlap |
| Texas | McCulloch | ​ | 207.7 | 334.3 | FM 1028 north | |
| Texas | McCulloch | ​ | 215.8 | 347.3 | FM 502 east | |
| Texas | McCulloch | ​ | 216.5 | 348.4 | FM 765 west | South end of FM 765 overlap |
| Texas | McCulloch | ​ | 216.7 | 348.7 | FM 765 east to FM 45 – Elm Grove | North end of FM 765 overlap |
| Texas | Brown | Dulin | 224.8 | 361.8 | FM 586 north – Brookesmith, Trickham | South end of FM 586 overlap |
| Texas | Brown | ​ | 225.9 | 363.6 | FM 586 south | North end of FM 586 overlap |
| Texas | Brown | ​ | 233.8 | 376.3 | FM 1176 north – Trickham | |
| Texas | Brown | ​ | 235.8 | 379.5 | FM 45 south – Richland Springs, T.R. Havins Unit, Gordon Wood Stadium | |
| Texas | Brown | ​ | 236.8 | 381.1 | FM 3064 east (Morris Sheppard Drive) – Gordon Wood Stadium | |
| Texas | Brown | Brownwood | 239.2 | 385.0 | Fisk Street / Carnegie Street / Coleman Avenue | Interchange |
| Texas | Brown | Brownwood | 240.0 | 386.2 | FM 2524 (Austin Avenue) – Downtown Historic Area, Howard Payne University | |
| Texas | Brown | Brownwood | 240.8 | 387.5 | US 67 south / US 84 west (West Commerce Street) to SH 279 – Coleman | South end of US 67 / US 84 concurrency |
| see US 67 |||||||
| Texas | Erath | Stephenville | 301.6 | 485.4 | US 67 north – Glen Rose | North end of US 67 concurrency |
| Texas | Erath | Stephenville | 302.0 | 486.0 | US 281 – Mineral Wells, Hico, Airport | |
| Texas | Erath | Stephenville | 302.4 | 486.7 | FM 205 – Cedar Point | |
| Texas | Erath | ​ | 304.0 | 489.2 | Bus. US 377 south – Stephenville | |
| Texas | Erath | ​ | 314.5 | 506.1 | FM 1188 west – Morgan Mill | |
| Texas | Erath | Bluff Dale | 316.1 | 508.7 | FM 2481 south | |
| Texas | Hood | ​ | 322.2 | 518.5 | FM 2870 south (Rock Church Highway) | |
| Texas | Hood | Tolar | 322.9 | 519.7 | FM 56 north (Tolar Highway) | South end of FM 56 overlap |
| Texas | Hood | Tolar | 323.2 | 520.1 | FM 56 south – Glen Rose | North end of FM 56 overlap |
| Texas | Hood | Granbury | 329.1 | 529.6 | Loop 567 north – Weatherford | |
| Texas | Hood | Granbury | 329.8 | 530.8 | Bus. US 377 north – Granbury, Historical District, Airport | |
| Texas | Hood | Granbury | 330.9 | 532.5 | SH 144 – Granbury, Glen Rose | Interchange |
| Texas | Hood | Granbury | 333.2 | 536.2 | Bus. US 377 south / FM 4 north – Granbury, Historical District | Interchange; south end of FM 4 overlap |
| Texas | Hood | Granbury | 335.3 | 539.6 | FM 4 south – Acton | North end of FM 4 overlap |
| Texas | Hood | Granbury | 336.4 | 541.4 | FM 167 north | South end of FM 167 overlap |
| Texas | Hood | Granbury | 337.5 | 543.2 | FM 167 south – Acton, Camp El Tesoro | North end of FM 167 overlap |
| Texas | Hood | Cresson | 343.9 | 553.5 | SH 171 – Weatherford, Cleburne | |
| Texas | Johnson | No major junctions | No major junctions | No major junctions | No major junctions | No major junctions | No major junctions | No major junctions |
| Texas | Parker | No major junctions | No major junctions | No major junctions | No major junctions | No major junctions | No major junctions | No major junctions |
| Texas | Tarrant | Wheatland | 352.1 | 566.7 | FM 1187 east – Crowley | South end of FM 1187 overlap |
| Texas | Tarrant | ​ | 352.6 | 567.5 | FM 1187 west | North end of FM 1187 overlap |
| Texas | Tarrant | Benbrook | 356.2 | 573.2 | RM 2871 west | |
| Texas | Tarrant | Benbrook | 358.4– 358.5 | 576.8– 576.9 | I-20 / I-820 north | I-20 exit 429A |
| Texas | Tarrant | Fort Worth | 360.8– 361.0 | 580.7– 581.0 | SH 183 (Alta Mere Drive / Southwest Boulevard) to Spur 580 | traffic circle |
| Texas | Tarrant | Fort Worth | 361.7 | 582.1 | Spur 580 west (Camp Bowie West Boulevard) to SH 183 | No left turn northbound |
| Texas | Tarrant | Fort Worth | 361.7 | 582.1 | Camp Bowie Boulevard | Interchange; northbound exit and southbound entrance; Spur 580 is former US 80 |
| Texas | Tarrant | Fort Worth | 363.9 | 585.6 | I-30 west – Abilene | Southbound exit and northbound entrance; south end of I-30 overlap; US 377 south follows exit 9Bl |
| see I-30 |||||||
| Texas | Tarrant | Fort Worth | 368.1– 368.3 | 592.4– 592.7 | I-30 east / I-35W south / US 287 south / SH 180 east (East Lancaster Street) – Dallas, Waco | North end of I-30 overlap; south end of I-35W / US 287 overlap; US 377 north follows exit 15A; US 377 south follows exit 51; SH 180 (East Lancaster Street) is former US 80 |
| Texas | Tarrant | Fort Worth | 369.2 | 594.2 | Spur 280 – Downtown Fort Worth | I-35W exit 52A, access to Fort Worth Central Station |
| Texas | Tarrant | Fort Worth | 369.8– 369.9 | 595.1– 595.3 | I-35W north / US 287 north / SH 121 north / Spur 347 west (Belknap Street) – Denton, D/FW Airport | North end of I-35W / US 287 overlap; US 377 north follows exit 52B |
| Texas | Tarrant | Haltom City | 373.3 | 600.8 | SH 183 west (Northeast 28th Street) | South end of SH 183 overlap |
| Texas | Tarrant | Haltom City | 373.9 | 601.7 | SH 183 east (East Belknap Street) | North end of SH 183 overlap |
| Texas | Tarrant | Haltom City | 376.5– 376.6 | 605.9– 606.1 | I-820 (Northeast Loop 820) / I-820 Express | I-820 exit 19 |
| Texas | Tarrant | Keller | 383.2 | 616.7 | FM 1709 east (Keller Parkway) / Golden Triangle Boulevard – Grapevine | |
| Texas | Tarrant | Westlake | 386.9– 387.0 | 622.7– 622.8 | SH 170 | Proposed upgrade to interchange |
| Texas | Denton | Roanoke | 388.3 | 624.9 | To Bus. SH 114 / Denton Drive (Loop 118) | |
| Texas | Denton | Roanoke | 389.0– 389.1 | 626.0– 626.2 | SH 114 | Proposed upgrade to interchange |
| Texas | Denton | Flower Mound | 392.2 | 631.2 | FM 1171 – Lewisville | |
| Texas | Denton | Argyle | 395.5 | 636.5 | FM 407 to I-35E – Justin | |
| Texas | Denton | Denton | 401.6 | 646.3 | FM 1830 south (Country Club Road) to FM 407 – Bartonville | |
| Texas | Denton | Denton | 403.0– 403.1 | 648.6– 648.7 | I-35E | I-35E exit 465B |
| Texas | Denton | Denton | 403.9 | 650.0 | US 77 south (East Eagle Drive) | South end of US 77 concurrency |
| Texas | Denton | Denton | 404.6 | 651.1 | FM 426 east (McKinney Street) | |
| Texas | Denton | Denton | 405.6 | 652.7 | US 77 north (North Locust Street) / US 380 west (West University Drive) to FM 428 | North end of US 77 concurrency, south end of US 380 concurrency |
| Texas | Denton | Denton | 408.1 | 656.8 | Loop 288 / US 380 Truck west | Interchange |
| Texas | Denton | Cross Roads | 412.6 | 664.0 | US 380 east – McKinney | Interchange; north end of US 380 concurrency |
| Texas | Denton | Cross Roads | 414.7 | 667.4 | FM 424 south | |
| Texas | Denton | Aubrey | 418.2 | 673.0 | FM 428 (Springhill Road) – Aubrey, Celina | |
| Texas | Denton | Aubrey | 420.2 | 676.2 | FM 3524 south | |
| Texas | Denton | Pilot Point | 423.2 | 681.1 | FM 455 west – Sanger, Ray Roberts Lake and State Park | South end of FM 455 overlap |
| Texas | Denton | Pilot Point | 423.9 | 682.2 | Bus. US 377 north | |
| Texas | Denton | Pilot Point | 425.4 | 684.6 | FM 455 east / FM 1192 west (East Liberty Street) – Pilot Point, Celina | North end of FM 455 overlap |
| Texas | Denton | Pilot Point | 426.7 | 686.7 | Bus. US 377 south (North Washington Street) – Pilot Point | |
| Texas | Grayson | Tioga | 430.2 | 692.3 | Bus. US 377 north (South Donation Street) | |
| Texas | Grayson | Tioga | 430.7 | 693.1 | FM 121 east (Sherman Street) – Gunter | |
| Texas | Grayson | Tioga | 431.0 | 693.6 | Bus. US 377 south (North Donation Street) | |
| Texas | Grayson | Tioga | 431.6 | 694.6 | FM 922 west – Valley View | |
| Texas | Grayson | Collinsville | 436.8 | 703.0 | Bus. US 377 north (South Main Street) | |
| Texas | Grayson | Collinsville | 437.0 | 703.3 | FM 902 (Locust Street) – Lake Kiowa, Ethel | |
| Texas | Grayson | Collinsville | 437.9 | 704.7 | Bus. US 377 south (North Main Street) | |
| Texas | Grayson | ​ | 440.1 | 708.3 | Bus. US 377 north – Whitesboro | |
| Texas | Grayson | Whitesboro | 443.5 | 713.7 | Spur 129 to SH 56 – Whitesboro, Sherman | |
| Texas | Grayson | Whitesboro | 445.1 | 716.3 | Bus. US 377 south – Whitesboro | |
| Texas | Grayson | Whitesboro | 445.2– 445.3 | 716.5– 716.6 | US 82 – Gainesville, Sherman | Interchange; US 82 exit 624 |
| Texas | Grayson | ​ | 454.5 | 731.4 | FM 901 south – Gordonville | South end of FM 901 overlap |
| Texas | Grayson | ​ | 455.2 | 732.6 | FM 901 north – Sheppard AFB Annex | North end of FM 901 overlap |
| Lake Texoma | Lake Texoma | Lake Texoma | 460.40.0 | 740.90.0 | Willis Bridge; Texas–Oklahoma line SH-99 begins | Willis Bridge; Texas–Oklahoma line SH-99 begins |
| See SH-99 |||||||
| Oklahoma | Lincoln | Stroud | 139.9 | 225.1 | SH-99 north / I-44 / Turner Turnpike – Oklahoma City, Tulsa | ODOT lists this as northern terminus; I-44 exit 179; road continues as SH-99 north |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Incomplete access |||||||

### State Highway Loop 118

State Highway Loop 118 (Loop 118) is a short and unsigned loop highway. The highway connects US 377 to Business State Highway 114 (Bus. SH 114) without the need for an intersection between those highways. The loop is just 0.209 miles (0.336 km) long, and is located entirely within the downtown portion of the town of Roanoke, Texas. The highway was first designated on February 4, 1941. The original route traveled from US 377 just south of Roanoke, along Oak Street, past Bus. SH 114 northward to SH 114, with State Highway Spur 118 (Spur 118) going from Loop 118 to US 377 via Denton Drive. On September 26, 1996, the stretch of Oak Street traveling from US 377 to Denton Drive was given back to the city of Roanoke.
The entire route is in Roanoke, Denton County.
| mi | km | Destinations | Notes |
| 0.000 | 0.000 | US 377 (Front Street) – Ft. Worth, Denton | Southern terminus; road continues west as Denton Drive |
| 0.209 | 0.336 | Bus. SH 114 (Byron Nelson Boulevard) | Northern terminus; road continues as Oak Street |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi ||||

### State Highway Spur 118

State Highway Spur 118 (Spur 118) was designated on February 4, 1941, as a spur off Loop 118 in Roanoke to US 377. On September 26, 1996, Spur 118 became a portion of Loop 118 when it was rerouted onto the spur and the former portion of Loop 118 was removed and returned to the city of Roanoke.

## Related routes

* U.S. Route 77
* U.S. Route 177
* U.S. Route 277