Interstate 635 in Texas
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Interstate 635 in Texas

Interstate 635 marker

Interstate 635
Lyndon B. Johnson Freeway
I-635 highlighted in red
Route information
Maintained by TxDOT
Length 36.999 mi[1][2] (59.544 km)
Existed October 1, 1959[1] - present
Major junctions
Southeast end in Balch Springs
  in Dallas
in Dallas
in Mesquite
in Mesquite
Northwest end / near DFW Airport
Highway system

Interstate 635 (I-635) is a 37-mile-long (60 km) partial loop around Dallas, Texas, in the United States between I-20 in Balch Springs and State Highway 121 (SH 121) at the north entrance of the Dallas-Fort Worth International Airport in Grapevine. It intersects I-35E at exits 27B-C, but does not connect with I-35W. It is known locally as the Lyndon B. Johnson Freeway, or LBJ, named after Lyndon B. Johnson, the former U.S. Senator from Texas, 37th Vice President, and the 36th President of the United States.

Where I-635 ends at I-20, I-20 continues the LBJ Freeway name heading west.

Because the portion of I-20 between Spur 408 to I-635 retains the same names as 635, the two highways can be considered 3/4 of the beltway around Dallas. Together with Spur 408, a portion of Loop 12 (Walton Walker Freeway), and a portion of Interstate 35E, the Stemmons Freeway, 635 and 20 complete the beltway.

Route description

I-635 signage on the Dallas North Tollway frontage road. Galleria Dallas can be seen in the background.

I-635 begins at an intersection with I-20 in southeast Dallas, and travels northward through Balch Springs into Mesquite, where it intersects U.S. Highway 80 (US 80) and I-30. The route then turns to the northwest, continuing near the border between Dallas and Garland. Six miles (9.7 km) later is takes a general westward turn as it intersects US 75 at the High Five Interchange. The section from I-35E to US 75 (Central Expressway) is one of the busiest stretches of road in the Dallas-Fort Worth Metroplex, at virtually all hours of the day and night. The route continues west, intersecting the Dallas North Tollway and its original terminus, I-35E in Farmers Branch. The freeway then continues to the northwest, intersecting the President George Bush Turnpike in Irving before arriving at its final terminus at SH 121 at the north entrance to the Dallas-Fort Worth International Airport.


A 1955 photo of the Interstate Highway city plans

I-635 was originally designated by the Texas Department of Transportation in 1959 as a loop around the eastern side of Dallas, connecting with I-35E to the northwest and southwest sides of the city.

In January 1969, the first section to open to motorists was a 10-mile (16 km) section from US 75 to Barnes Bridge in Mesquite[clarification needed]. In February 1970, the highway from US 75 westward to I-35E northwest of Dallas opened to traffic. The I-635 designation was truncated in 1971 when I-20 was rerouted south of Dallas, taking over 13 miles (21 km) of I-635's former route.[1]

The connecting section of I-20 from the west was not completed until 1978. Initially, the section between I-35E and US 80 in southeast Dallas was concurrent with I-20. When the outlet for I-20 from southeast of Dallas to Terrell was completed, the I-635 designation was removed from I-35E to its intersection with I-20.

An additional westward expansion (to the north entrance of DFW Airport) was designated in 1974 and opened in the 1980s.

Later changes

The High Five construction project (so called because it is five levels and rises almost 120 feet (40 m) above the lowest level), a rebuild of the interchange of I-635 and US 75, was opened for traffic in February 2006. This interchange carries over 500,000 vehicles per day and was built as the largest interchange in the state of Texas to handle this vehicle load.

Express project

A $2.7 billion project was started on May 16, 2011, to widen I-635 and dig subsequent high-occupancy toll (HOT) lane tunnels beneath the primary roadway from I-35E to the High Five Interchange, a length of 8 miles (13 km). Construction time was estimated in 2011 at five years [3] and was completed and opened for traffic on September 10, 2015. [4] The new freeway features tolled express lanes, known as TEXpress lanes, in between the main lanes or underneath them. The cost to drive on them fluctuates based on the current flow of traffic at the time. The project is among several billion dollar plus projects in the planning phase in and around downtown Dallas along with the rebuild of the I-35E & I-30 "Mixmaster". [5]

Exit list

DallasBalch Springs0.00.0 west - Fort WorthI-20 exit 480
0.10.161C east - ShreveportSouthbound exit and northbound entrance
0.40.641ASeagoville Road
1.52.41BElam Road
2.64.22Lake June Road
Mesquite3.65.83West Cartwright Road / Bruton Road
5.08.04 (Military Parkway / Scyene Road)
5.99.55Gross Road
6.610.66 - Dallas, TerrellSigned as exits 6A (west) and 6B (east)
8.113.07ATowne Centre DriveSouthbound exit and northbound entrance
7.512.17BTown East BoulevardSigned as exit 7 northbound
8.714.08 (US 67) - Dallas, TexarkanaSigned as exits 8A (west) and 8B (east); I-30 exits 56B-C
9.715.69AOates Drive / Galloway Avenue
Managed HOV LaneNorthbound exit and southbound entrance
Mesquite-Garland line10.817.49BLa Prada DriveEastbound exit and westbound entrance
Garland11.418.311ACenterville Road / Ferguson Road
12.219.611BNorthwest Highway / Shiloh Road
13.421.612 (Garland Road)No direct westbound exit (signed at exit 11B)
Garland-Dallas line13.922.413Jupiter Road / Kingsley Road / Walnut Hill Lane
DallasManaged HOV LaneWestbound exit and eastbound entrance
15.224.514Plano Road / Church Road
16.025.715 Miller Road / Royal LaneAccess to LBJ/Skillman Station
16.626.716Skillman Street / Audelia Road
Managed HOV LaneWestbound exit and eastbound entrance
17.628.317Forest Lane / Abrams Road
18.229.318AGreenville AvenueSigned as exit 18 westbound
Managed HOV LaneEastbound exit and westbound entrance
west to (Preston Road) / Westbound exit and eastbound entrance
19.531.418B TI BoulevardNo direct westbound exit (signed at exit 18), access to LBJ/Central Station
18.830.319A - Dallas, McKinneyHigh Five Interchange; US 75 exit 21
19.631.519BCoit Road
20.232.520Park Central Drive / Hillcrest Road
21.534.621 (Preston Road) / Montfort Drive
Farmers Branch-Dallas line22.836.722BDallas Parkway / Inwood Road / Montfort DriveNo direct eastbound exit (signed at exit 22D)
23.237.322C-DSigned as exits 22C (north) and 22D (south)
24.138.823Midway Road / Welch Road
25.240.624Marsh LaneNo direct westbound exit (signed at exit 23)
25.841.525Webb Chapel Road / Josey Lane / Denton Drive / Harry Hines Boulevard
Dallas - Dallas, DentonWestbound exit and eastbound entrance
27.844.727B-C (US 77) - Dallas, DentonSigned as exits 27B (north) and 27C (south); I-35E exits 440B-C
Farmers Branch29.046.728Luna Road
Irving30.048.329 northSigned as exits 29 (north) and 30 (south) westbound and exits 29A (south) and 29B (north) eastbound
30.749.431 MacArthur BoulevardAccess to Las Colinas Medical Center
31.951.331BOlympus BoulevardNo direct eastbound exit (signed at exit 31)
Coppell-Irving line32.852.833Belt Line Road
34.956.234Freeport Parkway
Coppell35.857.635Royal Lane
TarrantGrapevine36.759.136A south /  - Fort Worth, DFW Airport, DallasWestbound exit and eastbound entrance
36.959.436B north / north (Grapevine Mills Parkway) / Bass Pro DriveWestbound exit and eastbound entrance
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also


  1. ^ a b c Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 635". Highway Designation Files. Texas Department of Transportation. Retrieved 2012. 
  2. ^ DeSimone, Tony (October 31, 2002). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of October 31, 2002". Route Log and Finder List. Federal Highway Administration. Retrieved 2007. 
  3. ^ Betz, Jonathan (May 16, 2011). "HOV lanes close on LBJ Freeway as 5-year, $2.7 billion makeover begins in North Dallas". Dallas Morning News. Retrieved 2011. 
  4. ^ Wheeler, Jason. "After long road, LBJ Express project set to open". WFAA. Retrieved 2015. 
  5. ^ NTTA. "Trinity Parkway". Retrieved 2015. 

External links

Route map: Google

KML is from Wikidata

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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