Features
- Oases—these oases are a part of the entire tollway system, but the most are on the Tri-State Tollway. They provide food and gas without having to exit the tollway proper. They are built over the road.
- Pay-as-you-go tolling—like all Illinois tollways, rather than getting an entry ticket and paying upon exiting the tollway, drivers pay a flat toll at toll barriers along the main line (every 10 miles (16 km) south of O'Hare Airport). There are also automated toll collection lanes at some exits and entrances.
- Open road tolling—open road tolling allows the automatic collection of tolls via an I-Pass (compatible with E-ZPass), without the need to slow down or stop at a toll booth.
- Thornton Quarry—about 0.75 miles (1.21 km) of the highway crosses a quarry being converted into a large lake for overflow storm water. Currently, the road's elevation over the floor of the quarry is up to 100 feet (30 m) deep on both sides of the highway, making for a unique view.
- No direct interchange with Interstate 57—despite the fact that these two highways cross paths, there has always been room for an interchange to be built, and one is currently being planned by the Illinois Department of Transportation, ISTHA, and others. I-57 and I-355 are the only Chicago area expressways that cannot be directly accessed from the Tri-State Tollway.
Read more about this topic: Tri-State Tollway
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