Interstate 35 northbound begins at an intersection (controlled by a stoplight) with Business Spur I-35 in Laredo, Texas, just north of the Rio Grande. Through Webb, La Salle, and Frio Counties, it has a mostly north-northeastern course, turning more northeast around Moore. It then cuts across the corners of Medina and Atascosa Counties before entering Bexar County and San Antonio.
Interstate 35 is named the Pan Am Expressway in San Antonio. There, it has brief concurrencies with both Interstate 10 and Interstate 410, and serves as the northern terminus of Interstate 37. I-35 heads northward out of the city towards the state capital, Austin.
In Austin, Interstate 35 is the Interregional Highway. Throughout Austin, elevated express lanes were constructed on either side of the original freeway. Prior to this expansion, this section included an at-grade railroad crossing, which is extremely unusual for a freeway. From Austin, I-35 goes through Round Rock, Temple, and Waco. In Waco, I-35 is the Jack Kultgen Freeway.
I-35 then heads to Hillsboro, where it splits up into I-35W and I-35E and runs through the Dallas/Fort Worth area. The official mile markers follow I-35E through Dallas¡ªI-35W, which is 85 miles in length, carries its own mileage from Hillsboro to Denton, as though it were an x35 loop. In Dallas, I-35 is the R.L. Thornton Freeway south of I-30, which picks up the name heading east. North of I-30, it is the Stemmons Freeway.
After passing through D/FW, I-35's two forks merge in Denton. The unified interstate then continues north to Gainesville before crossing the Red River into Oklahoma.
Interstate 35 Texas Descriptions - I35.mobi
