&sq=Qlik&lang=&file=File:I-635_(TX).svg) Interstate 635 | ||||
|---|---|---|---|---|
| Lyndon B. Johnson Freeway | ||||
 I-635 highlighted in red | ||||
| Route information | ||||
| Auxiliary route of I-35 | ||||
| Maintained by TxDOT | ||||
| Length | 37 mi[1][2] (60 km) | |||
| Existed | October 1, 1959[1]–present | |||
| NHS | Entire route | |||
| Major junctions | ||||
| South end |  I-20 in Balch Springs | |||
| ||||
| West end |   SH 121 / International Parkway near DFW Airport | |||
| Location | ||||
| Country | United States | |||
| State | Texas | |||
| Counties | Dallas, Tarrant | |||
| Highway system | ||||
| ||||
Interstate 635 (I-635[a]) is a 37-mile-long (60 km) partial loop around Dallas, Texas, in the United States between I-20 in Balch Springs and SH 121 at the north entrance of the DFW Airport in Grapevine. It intersects I-35E at exits 27B and 27C but does not connect with I-35W. I-635 and a part of I-20 are collectively designated as the Lyndon B. Johnson Freeway; known locally as the LBJ Freeway, or simply LBJ. The roadway is named after Lyndon B. Johnson, the former U.S. senator from Texas and the 37th vice-president and 36th president of the U.S. Where I-635 ends at I-20, I-20 continues the LBJ Freeway designation heading west. Since the portion of I-20 between Spur 408 to I-635 retains the same names as I-635, the two highways are considered three-quarters of the beltway around Dallas. Together with Spur 408, a portion of Loop 12, and a portion of I-35E, I-635 and I-20 complete the beltway.
- ^ a b Transportation Planning and Programming Division (n.d.). "Interstate Highway No. 635". Highway Designation Files. Texas Department of Transportation. Retrieved January 7, 2024.
- ^ Starks, Edward (January 27, 2022). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Archived from the original on February 13, 2023. Retrieved January 7, 2024.
- ^ Transportation Planning and Programming Division (n.d.). "Highway Designations Glossary". Texas Department of Transportation. Archived from the original on July 10, 2022. Retrieved May 20, 2020.
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