Interstate 35W Texas

I-35W Texas
North End
South End


Interstate 35 splits into Interstates 35E and 35W to serve Dallas (east) and Fort Worth (west). The two routes diverge north of Hillsboro, through rural reaches of Hall County and reconvene on the west side of Denton.

Interstate 35W angles northwest to Grandview and Alvarado through rural areas of Johnson County before crossing the Tarrant County line at Burleson. A business route serves Alvarado, near the junction with U.S. 67. It is signed as Business Loop I-35 versus 35W. IH 35W (South Freeway) passes west of Fort Worth Spinks Airport (FWS) through an area of retail in south Fort Worth. The freeway advances northward by a large industrial park to Interstate 20 near the town of Edgecliff Village.

IH 35W bisects central Fort Worth to Downtown, where it meets Interstate 30, U.S. 287 (Martin Luther King, Jr. Freeway) and Texas 121 (Airport Freeway). U.S. 287 combines with IH 35W north from there across the Trinity River West Fork through another industrial park area ahead of Interstate 820.

A wye interchange separates U.S. 287 from IH 35W beyond residential subdivisions along Basswood Boulevard. This split represents the northbound beginning of U.S. 81, which IH 35 and IH 35W replaced southward to Laredo. Passing by Fort Worth Alliance Airport (AFW), Interstate 35W (North Freeway) crosses the Denton County line en route to Northlake and Texas Motor Speedway. The remainder of the route west of Argyle and through south Denton is mostly rural to the merge with IH 35E.


The American Association of State Highway and Transportation Officials (AASHTO) mandated that all suffixed Interstate highways be renumbered to eliminate confusion. Similar to the Interstate 35E and 35W branch split in Minnesota, the reason IH 35E and 35W remain in Texas is that neither Dallas nor Fort Worth wanted to relinquish the routing of Interstate 35.

The South Freeway was one of the first Fort Worth area freeways built. The initial stretch was constructed starting on April 7, 1947 between Seminary Drive (Exit 46A) and Morningside Drive (north of Exit 48A). It was opened on September 14, 1949 as a new alignment for U.S. 81. Subsequent sections of the South Freeway opened north from Morningside Drive and Rosedale Street on November 30, 1951, from Rosedale Street to IH 30 in March 1955 and between Seminary Drive and Altamesa Boulevard that same year.1

Construction on the North Freeway commenced north of IH 30 in 1958, but was delayed one year due to litigation. The stretch between IH 30 and Yucca Avenue north of the Trinity River West Fork opened in May 1962. Extensions followed northward from Yucca Avenue to 28th Street in 1963, from 28th Street to IH 820 in 1966 and from IH 820 to Texas 114 in Denton County in August 1967. The route was completed north to Denton on July 3, 1969, with the interchange at IH 35E finished on April 15, 1970.1

Route Information

  • North End – Denton, TX

  • South End – Hillsboro, TX

  • Mileage – 85.20

  • Cities – Burleson, Fort Worth

  • JunctionsI-20 I-30 I-820

Source: December 31, 2018 Interstate Route Log and Finders List

The North-South Expressway, then U.S. 81, appeared in this 1954 General Drafting Map as Fort Worth’s first freeway.

U.S. 81 was truncated northward from Laredo to IH 35W north of Fort Worth in 1993.

Dallas-Fort Worth Area – 1967 Texas Official Highway Map

Interstate 35W between north Fort Worth and Denton was the last portion of the IH 35 branch split to open through north Texas.

Highway Guides

North End I-35 – Denton, Texas

I-35 South at I-35E I-35W

IH 35 south at IH 35E/W - Denton, TX

IH 35 was expanded to six overall lanes in 2016-17 leading to the separation with IH 35E to Dallas and IH 35W to Fort Worth. Photo taken by Jeff Morrison (12/28/05).

IH 35 south at IH 35E/W - Denton, TX

A slip ramp (Exit 468) precedes the semi-directional T interchange (Exit 467) with IH 35E/W for FM 1515 (Airport Road) and West Oak Street. Photo taken by Jeff Morrison (12/28/05).

IH 35 south at IH 35E/W - Denton, TX

Interstate 35E branches southeast from Denton to Corinth, Lewisville Lake and Dallas while Interstate 35W trends westward to Argyle, Northlake and Fort Worth. Photo taken by Jeff Morrison (12/28/05).

South End I-35 – near Hillsboro, Texas

I-35W South at I-35 I-35E

IH 35W south at IH 35/35E - Hillsboro, TX

IH 35W combines with IH 35E seven miles south of south of Itasca.

IH 35W south at IH 35/35E - Hillsboro, TX

There is no access to IH 35E north from IH 35W south. The southbound roadway however connects with Exit 370 to U.S. 77 north & SS 579 prior to the resumption of IH 35 through Hillsboro. Photo taken 09/04/09.

I-35 North at I-35E I-35W

IH 35 north at IH 35E/W - 2000

IH 35 north at State Spur 579 west and U.S. 77 north at Hillsboro. Photo taken by Marc Welby (08/00).

IH 35 north at IH 35E/W - Hillsboro, TX

IH 35E and IH 35W separate at an unnumbered three wye interchange. Photo taken 09/04/09.

I-35 North at I-35E I-35W

IH 35E south at IH 35/35W - 2002

Two miles ahead of the merge with IH 35W on IH 35E in rural Hill County. Photo taken by Justin Cozart (08/02).

IH 35E south at IH 35/35W - 2002

Former button copy signs at the three wye interchange where IH 35E/W converge outside Hillsboro. Photo taken by Justin Cozart (08/02).


  • Slotboom, Oscar (2014). Fort Worth Freeways. Dallas-Fort Worth Freeways, Texas-Sized Ambition, Retrieved from

Page updated March 17, 2019.