Back Interestatal 19 AST Interstate Highway 19 Danish Interstate 19 German Interestatal 19 Spanish Interstate 19 Basque بزرگراه میانایالتی ۱۹ Persian Interstate 19 French Interstate 19 Hungarian Interstate 19 Italian 주간고속도로 제19호선 Korean
.svg) Interstate 19 | ||||
|---|---|---|---|---|
 I-19 highlighted in red | ||||
| Route information | ||||
| Maintained by ADOT | ||||
| Length | 102.08 km[1] (63.43 mi) | |||
| Existed | 1963[2]–present | |||
| NHS | Entire route | |||
| Major junctions | ||||
| South end |  BL 19 in Nogales | |||
| North end |  I-10 in Tucson | |||
| Location | ||||
| Country | United States | |||
| State | Arizona | |||
| Counties | Santa Cruz, Pima | |||
| Highway system | ||||
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Interstate 19 (I-19) is a north–south Interstate Highway located entirely within the US state of Arizona. I-19 travels from Nogales, roughly 90 meters (300 ft) from the Mexican border, to Tucson, at I-10. The highway also travels through the cities of Rio Rico, Green Valley, and Sahuarita.
Having a total length of just over 102 kilometers (63 mi), I-19 is the eighth-shortest primary (two-digit) Interstate Highway in the contiguous 48 states, where only I-86 (Idaho), I-11 (Nevada), I-2 (Texas), I-42 (North Carolina), I-14 (Texas), I-97 (Maryland), and I-87 (North Carolina) are shorter.
While the highway is short, it is a very important corridor, serving as a fast route from Tucson and Phoenix (via I-10) to the Mexican border. The highway is a portion of the US section of the CANAMEX Corridor, a trade corridor that stretches north from Mexico across the US to the Canadian province of British Columbia.