Highway Designation File

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

Certified Mileage (Open to Traffic)
37.972 2010


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

From a junction with IH 10 near east city limits of Houston, northwestward, westward, southward, and eastward to a junction with IH 45 in the southeast part of Houston.  New Designation

Approved BPR, dated 09/06/1962; Adm Cir 133-1962, dated 09/17/1962

From a junction with IH 10 in the eastern part of Houston circumferentially around the city to the point of beginning. (Harris County)  Extended southward from IH 10 to IH 45.

[Juan N. Seguin Memorial Interchange--The interchange at SH 225 and IH Loop 610 in Houston.  Acts 2001, 77th Leg., ch. 775, ยง 1, eff. June 13, 2001]