Interstate 70 Pennsylvania Descriptions

Drivers on I-70 near Breezewood, Pennsylvania have to leave the freeway and travel a few blocks on US 30 past several traffic lights before returning to the freeway.[8] This stretch of I-70 is one of the few gaps on the Interstate Highway System.

The 38 miles (61 km) of I-70 between Washington, Pennsylvania and New Stanton, Pennsylvania is a sub-standard section of the highway. This section of I-70 used to be Pennsylvania Route 71. It is characterized by sharp curves, limited sight distance, narrow shoulders, and lack of merge lanes at interchanges. Traffic on clover leaf ramps must weave in the right through lane of traffic due to the lack of a third lane for entering and exiting traffic. Other on and off ramps effectively function as RIRO, making for a nervewracking entrance if traffic is approaching. The speed limit on this stretch is 55 mph (90 km/h)

From New Stanton to Breezewood, I-70 overlaps I-76 and the Pennsylvania Turnpike. This is one of two tolled sections of I-70 (the other being in Kansas, where the portion of the Kansas Turnpike east of Topeka is signed I-70.)

I-70 also overlaps I-79 near Washington, Pennsylvania for 3 miles.

I-70 went through Pittsburgh, Pennsylvania at one point; its original route has been incorporated into I-376, as well as parts of I-76, I-279 and I-79.