the state Department of Transportation, toll collection ceased, and the tollbooths were removed in the first week of 1978.

The existing US 67 route was already in heavy use in the early 1950s, at which point it was twinned from just east of Dallas to Rockwall and also a rural section near Greenville and a few miles in Hopkins County. There were still a few at-grade crossings on these two sections into the 1980s. The twinned US 67 routes were upgraded to Interstate Highway standards