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In the U.S. state of Pennsylvania, Interstate 70 (I-70) runs east\west across the southwest part of the state serving the southern fringe of the Pittsburgh metropolitan area. About half of the route is concurrent with I-76 on the Pennsylvania Turnpike. This is the oldest segment of I-70 in Pennsylvania, having been completed in 1940, and is only one of two segments of I-70 that are tolled, with the other being the Kansas Turnpike. I-70 is one of only a few Interstate Highways to have a traffic signal\u2014in this case, with U.S. Route 30 (US 30) in Breezewood, where it leaves the Pennsylvania Turnpike and heads toward Maryland....Full Wikipedia Topic
Highway I-70 runs West to East with exit numbers starting at the western most exit of each state or province.
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