What Is The Longest Interstate Highway In The United States

Talk about a convenient trip.

The western portion of i 90 crosses the continental divide over. If you re looking for america s longest interstate highway that would be i 90 a mammoth cross country drive that takes off at boston logan international airport and caps off at seattle s greyhound bus station in front of the city s baseball and football stadiums. Interstate 90 i 90 is an east west transcontinental freeway and the longest interstate highway in the united states at 3 020 54 miles 4 861 09 km. 20 runs almost parallel to i 90 which at 3 020 miles is the longest interstate highway in the country.

The 5 415 km long us route 20 is the longest road in the country and is roughly parallel to the intersate 90. As of 2007 the longest state highway in the nation is montana highway 200 which is 706 624 miles 1 137 201 km long. In the united states each state maintains its own system of state highways. Numbered highway system and it runs from boston massachusetts to newport oregon.

The longest interstate highway in the us is the i 90. Measuring 3 365 miles long according to insider u s. Route 20 united states the us route 20 is a united states highway running from east to west. For much of its route u s.

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The federal highway act of 1921 set aside funds for states to build and improve highways according to the historic us route 20 association. Longest interstate highways in the united states interstate 90 i 90 this transcontinental highway which was constructed back in 1956 moves in an east to west direction. The shortest of the longest state highways is district of columbia route 295 which is only 4 29 miles 6 90 km long. Us 30 covering 3 073 miles us route 30 starts in atlantic city and ends in astoria oregon.

In comparison route 66 is 2 448 miles long and the pacific coast highway stretches for just 665 miles. The pennsylvania turnpike between irwin southeast of pittsburgh and carlisle west of harrisburg was officially opened in october 1940 and is now designated as i 76 and i 70. This is a list of the longest state highways in each state. It s part of the u s.

The longest road in the interstate system i 90 runs from boston surprise surprise to seattle washington spanning 3 101 77 miles. 20 is the longest road in the united states. It is the longest north south interstate highway five east west routes are longer and it passes through more states 15 than any other interstate.