This specific history of this freeway is still mostly a mystery to me. This was one of the first rural interstates in Texas, and of course it was built to obsolete standards. Interstate 45 is completed in Dallas. The last two sections were a 2 mile section north of Loop 12 and a short section north of the Trinity River. This is the last section of the freeway to be upgraded.
View looks north.
This stack is virtually identical in design to 3 other stacks along IH-20. View looks north. Just north of IH-20, looking north. Looking north from the Loop 12 overpass. Looking north from north of Loop 12.