Where they run: Originally, there were seven miles of express lanes along I-95 in Miami-Dade. Now the lanes extend from the junction of I-95 and State Road 836 near downtown Miami through Broward ...

D.C. I-95 also hits the most densely populated regions of the country as it moves through Miami, Baltimore, Washington, D.C., Philadelphia, New York, and Boston. The interstate hangs close to the ...