Correction for the length of I-80
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How long is 677 miles?
It's about one-fourth as long as I-80
The length of I-80 is about 2,881.940 miles.
(a.k.a. Interstate 80, a.k.a. Keystone Shortway) (net length)
Interstate 80, crosses the continent of North America from Teaneck, New Jersey to San Francisco, California and covers a total length of 2,881.940 miles. A 37.28230 miles stretch between mile marker 318 in Grand Island, Nebraska and mile marker 390 in Lincoln, Nebraska is the longest straight path in the US Interstate system.