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Interstate 17
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Interstate 17
Interstate 17 (I-17) is a north–south Interstate Highway located entirely within the US state of Arizona. I-17's southern terminus lies in Phoenix, at I-10/US 60 and its northern terminus is in Flagstaff, at I-40.
Most of I-17 is known as the Arizona Veterans Highway. In the Phoenix metropolitan area, it is mostly known as the Black Canyon Freeway, however, the southern 4.16 miles (6.69 km) are part of the Maricopa Freeway. The portion of the highway south of Cordes Lakes was built along the alignment of State Route 69 (SR 69), while the northern part was built along old SR 79's alignment. The final section of I-17 was completed in 1978.
I-17 gains more than one mile (1.6 km) in elevation between Phoenix at 1,117 feet (340 m) and Flagstaff at 7,000 feet (2,100 m). The highway features several scenic view exits along its route that overlook the many mountains and valleys in northern Arizona.
I-17 is known as the Black Canyon Freeway from the northern end of the Phoenix Metropolitan Area to a point 2.2 miles (3.5 km) south of The Stack interchange with I-10 northwest of Downtown Phoenix. (It is accompanied by frontage roads for most of this portion, and they carry the Black Canyon Highway name to distinguish from the freeway status.) At the Durango Curve southwest of downtown, between the 19th Avenue and Buckeye Road interchanges, it picks up the designation Maricopa Freeway all the way to the southern terminus at the second I-10 junction. It is one of the metropolitan area's primary freeways. It has two interchanges with I-10 in Phoenix.
The northern portion of the B Line of the Valley Metro Rail system runs over a bridge of I-17 from Mountain View Road to Metro Parkway, serving one station at Metro Parkway.
I-17 ends at Milton Road (SR 89A) north of I-40 in Flagstaff.
The I-17 corridor roughly follows the first stagecoach route through the Black Canyon, established in 1878 between Cañon (now Black Canyon City) and Prescott. A later highway through White Spar from Wickenburg to Yarnell was improved in 1925 and incorporated into US 89 in 1926.
In 1936, SR 69 was established as a state route from Phoenix north to Prescott. The road was completed by 1940 to Prescott. In 1954, a new route north to Flagstaff was established as SR 79. In May 1956, the Black Canyon Highway from Phoenix to Flagstaff was completed, but not to Interstate standards. It was incorporated into the new Interstate Highway System, established by the federal government later that year, and designated as part of I-17.
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Interstate 17
Interstate 17 (I-17) is a north–south Interstate Highway located entirely within the US state of Arizona. I-17's southern terminus lies in Phoenix, at I-10/US 60 and its northern terminus is in Flagstaff, at I-40.
Most of I-17 is known as the Arizona Veterans Highway. In the Phoenix metropolitan area, it is mostly known as the Black Canyon Freeway, however, the southern 4.16 miles (6.69 km) are part of the Maricopa Freeway. The portion of the highway south of Cordes Lakes was built along the alignment of State Route 69 (SR 69), while the northern part was built along old SR 79's alignment. The final section of I-17 was completed in 1978.
I-17 gains more than one mile (1.6 km) in elevation between Phoenix at 1,117 feet (340 m) and Flagstaff at 7,000 feet (2,100 m). The highway features several scenic view exits along its route that overlook the many mountains and valleys in northern Arizona.
I-17 is known as the Black Canyon Freeway from the northern end of the Phoenix Metropolitan Area to a point 2.2 miles (3.5 km) south of The Stack interchange with I-10 northwest of Downtown Phoenix. (It is accompanied by frontage roads for most of this portion, and they carry the Black Canyon Highway name to distinguish from the freeway status.) At the Durango Curve southwest of downtown, between the 19th Avenue and Buckeye Road interchanges, it picks up the designation Maricopa Freeway all the way to the southern terminus at the second I-10 junction. It is one of the metropolitan area's primary freeways. It has two interchanges with I-10 in Phoenix.
The northern portion of the B Line of the Valley Metro Rail system runs over a bridge of I-17 from Mountain View Road to Metro Parkway, serving one station at Metro Parkway.
I-17 ends at Milton Road (SR 89A) north of I-40 in Flagstaff.
The I-17 corridor roughly follows the first stagecoach route through the Black Canyon, established in 1878 between Cañon (now Black Canyon City) and Prescott. A later highway through White Spar from Wickenburg to Yarnell was improved in 1925 and incorporated into US 89 in 1926.
In 1936, SR 69 was established as a state route from Phoenix north to Prescott. The road was completed by 1940 to Prescott. In 1954, a new route north to Flagstaff was established as SR 79. In May 1956, the Black Canyon Highway from Phoenix to Flagstaff was completed, but not to Interstate standards. It was incorporated into the new Interstate Highway System, established by the federal government later that year, and designated as part of I-17.
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