The Lyndon B. Johnson Expressway, known to Texans as the LBJ, is a maze of asphalt and concrete.

This galaxy of lanes and junctions intersecting at different heights, lines straight and curved, parallel and intersecting, make up one of the major traffic systems on the planet. The LBJ Express has twice the capacity of the old LBJ highway, and it is ready for Dallas’s traffic needs.

The highway crosses 90 bridges and has interchanges standing three levels high. Some 60 miles of piling and 200 of precast beams were used in its construction.

The 250,000 vehicles on it every day travel on the almost 600,000 tons of pavement that make up this road, which has nine lanes each way. These nine lanes split into up to 28 lanes in some places.

This historic infrastructure will keep running well into the future.