U.S. 1 is designated as Texas' first east/west state-to-state highway, passing through Fort Worth along the existing I-30 route. U.S. 1 is later designated as U.S. 80.
U.S. 81 completed as a four-lane divided roadway from SH 550 (I-30) to the Johnson County line.
Original I-20/I-35W Cloverleaf Interchange completed.
U.S. 81 designated as I-35W when the interstate system is created.
Original I-30/I-35W Interchange completed.
I-35W completed from I-20 (present-day I-30) to Belknap St.
I-35W completed from Belknap St. to I-820.
I-35W completed from I-820 to the Denton County line becoming the new route to Denton and Oklahoma from Fort Worth.
U.S. 287 relocated north of Fort Worth with a connection to I-35W. Old U.S. 287 becomes Business 287.
I-35W reconstructed and expanded to six lanes with frontage roads from I-20 to Burleson at a cost of $12.9 million.
I-35W expanded from four and six lanes to eight lanes from downtown Fort Worth to I-20 at a cost of $63.5 million.
New I-20/I-35W Interchange completed at a cost of $69 million.
I-35W bridge at Alliance Blvd. and frontage road segments from the Denton County line to Westport Pkwy. completed at a cost of $7.6 million.
SH 170 Interchange and frontage roads from I-35W to SH 114 completed at a cost of $24 million.
Interchanges at Golden Triangle Blvd. and Heritage Trace Pkwy. completed with frontage roads at a cost of $7.9 million.
I-35W ramps and frontage road segments from Alliance Blvd. to SH 170 completed at a cost of $2.5 million.
Interchanges at Western Center Blvd. and Basswood Blvd. completed with frontage roads at a cost of $22 million.
New I-30/I-35W Interchange completed at a cost of $173 million.
Interchange at North Tarrant Parkway completed with frontage roads at a cost of $7.9 million.
Frontage road completed from North Tarrant Parkway to Harmon Road on U.S. 287 at a cost of $2.6 million.
Auxiliary lanes completed from U.S. 287 to I-820 at a cost of $2.7 million.
Ramp revisions and auxiliary lanes completed from I-20 to Sycamore School Road at a cost of $13 million.