Highway Designation File

Transportation Planning and Programming Division
Current Description-Effective Date-Authority


Certified Mileage (Open to Traffic)
634.723 2010

INTERSTATE HIGHWAY NO. 20

Approved BPR, dated 10/01/1959; Adm.Cir. 180-05, dated 10/16/1959

From a junction with IH 10 southwest of Pecos, via Pecos and Fort Worth to a junction with IH 35 E in Dallas; and from another junction with IH 35 E in Dallas to the Texas/Louisiana State Line east of Marshall.  New Designation


BPA Letter, dated  10/01/1964; Adm.Cir. 136-64, dated 12/01/1964

From a junction with IH 10 southwest of Pecos via Pecos to a junction with IH 35W in Fort Worth; and from a junction with IH 820 in Fort Worth to a junction with IH 35E in Dallas; and from another junction with IH 35E in Dallas to the Texas/Louisiana State Line east of Marshall.  Relocated between Ft. Worth and Dallas.


Minute Order 065684, dated 12/02/71; Adm. Cir. 125-71, dated 12/15/71

From junction with IH 10 southwest of Pecos via Pecos, Fort Worth and Dallas to the Texas-Louisiana State Line east of Marshall. (Reeves, Ward, Crane, Ector, Midland, Martin, Howard, Mitchell, Nolan, Taylor, Callahan, Eastland, Erath, Palo Pinto, Parker, Tarrant, Dallas, Kaufman, Van Zandt, Smith, Gregg and Harrison Counties)  Relocated from near the Parker/Tarrant County Line eastward to near Forney, with portions of IH 635 & IH 820 being transferred to IH 20.


[La Entrada al Pacifico Corridor--The following highways and any portion of a highway in a corridor on two miles of either side of the center line of the highway:

SH 349 from Lamesa to the point on that highway that is closest to 32 degrees, 7 minutes, north latitude, by 102 degrees, 6 minutes, west longitude;

The segment or any roadway extending from the point described by Subdivision (1) to the point on FM 1788 closest to 32 degrees, 0 minutes, north latitude, by 102 degrees, 16 minutes, west longitude;

FM 1788 from the point described by Subdivision (2) to its intersection with IH 20;

IH 20 from its intersection with FM 1788 to its intersection with US 385;

US 385 from Odessa to Fort Stockton, including those portions that parallel US 67 and IH 10; and

US 67 from Fort Stockton to Presidio, including those portions that parallel IH 10 and US 90.  Acts 1997, 75th Leg., ch. 595, § 1, eff. June 9, 1997]

[Ronald Reagan Memorial Hwy - The part of IH 20 between the Parker-Tarrant County Line and the eastern municipal boundary of Grand Prairie; and the part of US 290 in Harris County between the Waller-Harris County Line and Beltway 8. Acts 2005, 79th Leg., ch. 286, § 1, eff. Sept. 1, 2005; Acts 2005, 79th Leg., ch. 284, § 1, eff. Sept. 1, 2005]