intrastate interstate highway

FreightWaves Classics: Interstate 19 – it’s not the miles, it’s the kilometers!

I-19 signage. (Photo: Arizona Department of Transportation)

Interstate 19 (I-19) is another intrastate interstate (as are I-2, I-4, I-12, I-14, I-16 and I-17). I-19 is one of two intrastate interstates in Arizona (the other being I-17, which was recently profiled in another FreightWaves Classics article).

How can I-19 (as well as the other interstates listed above), be an interstate if it doesn’t cross one state’s border into another? According to an article by David Rookhuyzen of the Arizona Department of Transportation (ADOT) that quotes the Federal...

https://www.freightwaves.com/news/freightwaves-classics-interstate-19-its-not-the-miles-its-the-kilometers

FreightWaves Classics: I-17 serves Arizona’s ever-growing population

An outdoor news conference to announce a new improvement project on I-17. (Photo: Arizona Department of Transportation)

Interstate 17 (I-17) is another intrastate interstate (as are I-2, I-4, I-12, I-14 and I-16). It is 147 miles long and connects two of Arizona’s major cities – Phoenix and Flagstaff.

How can I-17 and the other interstates listed above, be an interstate if it doesn’t cross one state’s border into another? According to an article by David Rookhuyzen of the Arizona Department of Transportation (ADOT) that quotes the Federal Highway Administration (FHwA), “the Federal-Aid Highway Act of 1956, which...

https://www.freightwaves.com/news/freightwaves-classics-i-17-serves-arizonas-ever-increasing-population

FreightWaves Classics: I-16 connects Georgia’s ports to the Southeast

A damaged overpass is demolished in order to re-open I-16. (Photo: Georgia Department of Transportation)

Last week, Interstate 16 (I-16) was closed in both directions between Exit 71 and Exit 78 following extensive damage to an overpass in Treutlen County. Early on the morning of July 15, a large dump trailer crashed into that bridge over the highway, creating a danger when the bridge deck shifted off its supports by 6 feet over the interstate below, the GDOT said in a news release.

The interstate could not be reopened between the two exits mentioned above until the entire bridge deck was removed,...

https://www.freightwaves.com/news/freightwaves-classics-i-16-connects-georgias-ports-to-the-rest-of-the-state

FreightWaves Classics: Interstate 14 moves traffic in central Texas…

A ceremony for the designation of Interstate 14. (Photo: Fort Hood Sentinel)

On June 26, 1956, the U.S. Senate and U.S. House of Representatives approved a conference report on the Federal-Aid Highway Act (also known as the National Interstate and Defense Highways Act). Three days later (June 29, 1956), President Dwight D. Eisenhower signed it into law. To learn more about the history of the Interstate Highway System (IHS), read this article and its second part. Last week, an article celebrating the 65th anniversary of the IHS featured photos by FreightWaves...

https://www.freightwaves.com/news/freightwaves-classics-interstate-14-moves-traffic-in-central-texas

FreightWaves Classics: Interstate 2 is a new addition to the system

Signs for Interstate 2 and US Highway 83. (Photo: Federal Highway Administration)

Overview

There are 70 primary interstate highways in the Dwight D. Eisenhower National System of Interstate and Defense Highways (commonly known as the Interstate Highway System, or IHS). The IHS is a network of the major freeways in the United States. The oldest parts of the interstate system date back to the 1950s, although the planning for the system began prior to World War II. To learn more about their history, read previous FreightWaves Classics articles here, here and here.

In this article...

https://www.freightwaves.com/news/freightwaves-classics-profile-of-interstate-2