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1917
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.

1955
U.S. 81 completed as a four-lane divided roadway from SH 550 (I-30) to the Johnson County line.

1955
Original I-20/I-35W Cloverleaf Interchange completed.

1957
U.S. 81 designated as I-35W when the interstate system is created.

1958
Original I-30/I-35W Interchange completed.

1960
I-35W completed from I-20 (present-day I-30) to Belknap St.

1966
I-35W completed from Belknap St. to I-820.

1967
I-35W completed from I-820 to the Denton County line becoming the new route to Denton and Oklahoma from Fort Worth.

1970
U.S. 287 relocated north of Fort Worth with a connection to I-35W. Old U.S. 287 becomes Business 287.

1976
I-35W reconstructed and expanded to six lanes with frontage roads from I-20 to Burleson at a cost of $12.9 million.

1989
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.

1991
New I-20/I-35W Interchange completed at a cost of $69 million.

1991
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.

1992
SH 170 Interchange and frontage roads from I-35W to SH 114 completed at a cost of $24 million.

1997
Interchanges at Golden Triangle Blvd. and Heritage Trace Pkwy. completed with frontage roads at a cost of $7.9 million.

1998
I-35W ramps and frontage road segments from Alliance Blvd. to SH 170 completed at a cost of $2.5 million.

2000
Interchanges at Western Center Blvd. and Basswood Blvd. completed with frontage roads at a cost of $22 million.

2003
New I-30/I-35W Interchange completed at a cost of $173 million.

2005
Interchange at North Tarrant Parkway completed with frontage roads at a cost of $7.9 million.

2006
Frontage road completed from North Tarrant Parkway to Harmon Road on U.S. 287 at a cost of $2.6 million.

2006
Auxiliary lanes completed from U.S. 287 to I-820 at a cost of $2.7 million.

2008
Ramp revisions and auxiliary lanes completed from I-20 to Sycamore School Road at a cost of $13 million.