|Maintained by Arizona DOT|
|Length:||145.76 mi (234.58 km)|
|South end:||I-10 / US 60 in Phoenix, AZ|
|SR 89A in Flagstaff, AZ|
|North end:||I-40 in Flagstaff, AZ|
Interstate 17 (I-17) is an Interstate Highway located entirely within the state of Arizona, United States. I-17's southern terminus lies within Phoenix, at Interstate 10, and its northern terminus is in Flagstaff, at Interstate 40. The majority of I-17 is known as the Black Canyon Freeway, however the southern 10.44 miles (16.80 km) is part of the Maricopa Freeway. The southern part of the freeway was built along the alignment of SR 69, while the northern part was built along SR 79's alignment. I-17 is one of the most scenic Interstate Highways as it gains more than a mile in altitude between Phoenix (1,117 ft) and Flagstaff (7,000 ft). The highway features several scenic view exits along its route that overlook the many mountains and valleys found in northern Arizona.
Interstate 17 is known as the Black Canyon Freeway from the northern end of the Phoenix Metropolitan Area to its first interchange with Interstate 10 northwest of Downtown Phoenix, which is known as The Stack. At the curve (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 Interstate 10 junction. It is one of the metropolitan area's primary freeways.
I-17 has the unusual distinction of starting at approximately milepost 194 instead of at milepost zero. This is a holdover from Arizona's old system of marking mileposts, where a branching route would continue the milepost numbering of its original host, instead of starting over at zero. Interstate 17 inherited its milepost locations from SR 69, which the freeway replaced between Phoenix and Cordes Junction. SR 69's mileposting was such that it coincided with US 89's mileposting, which was 201.6 where the two routes intersected. When I-17 was constructed, the existing mileposting for SR 69 was retained.
"The Stack", intersection of Interstate 10 and I-17. Looking north up I-17, downtown Phoenix.
Interstate 17 near Flagstaff
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. By 1961, the roadway from Phoenix to Flagstaff had been established, but not to Interstate standards. By 1971, I-17 had been completed from Phoenix northward to Camp Verde where a short stretch had not been completed to standards. The stretch from SR 279 north to SR 179 was also complete. The largest section yet to be completed was from SR 179 north to Flagstaff. This segment was still just a two-lane roadway, but it did have full traffic interchanges built at cross roads. The portion from I-40 south to the Flagstaff Municipal Airport had been completed by this time.
|Maricopa||Phoenix||0.00||0.00||194||I-10 / US 60 east – Globe, Tucson, Sky Harbor Airport||Southern terminus, south end of US 60 overlap|
|1.14||1.83||195A||16th Street||Southbound exit and northbound entrance|
|2.15||3.46||195B||7th Street / Central Avenue|
|3.16||5.09||196||7th Avenue / Central Avenue|
|4.16||6.69||197||19th Avenue / Durango Street|
|5.03||8.10||198||Buckeye Road||Southbound exit is via exit 199A|
|5.73||9.22||199B||Jefferson Street||Southbound exit and northbound entrance|
|5.88||9.46||199B||Adams Street / Van Buren Street||Southbound exit is via exit 200B|
|6.49||10.44||200A||I-10 – Tucson, Los Angeles, CA|
|8.09||13.02||201||US 60 west (Grand Avenue) / Thomas Road||North end of US 60 overlap|
|9.08||14.61||202||Indian School Road|
|11.09||17.85||204||Bethany Home Road|
|20.15||32.43||214||Union Hills Drive / Yorkshire Drive||Signed as exits 214A (Union Hills Drive) and 214B (Yorkshire Drive) northbound|
|21.11||33.97||214C||Loop 101 – Glendale, Scottsdale|
|21.66||34.86||215A||Rose Garden Lane||Southbound exit is via exit 215B|
|22.16||35.66||215B||Deer Valley Road|
|23.27||37.45||217||Pinnacle Peak Road|
|24.19||38.93||218||Happy Valley Road|
|27.25||43.85||220||Dixileta Drive||Northbound exit and southbound entrance|
|28.19||45.37||221||Loop 303 / Sonoran Desert Drive|
|29.17||46.94||222||Dove Valley Road||Exit opened November 2013|
|30.17||48.55||223||SR 74 (Carefree Highway) – Wickenburg||Signed as exits 223A (east) and 223B (west) northbound, eastern terminus of SR 74|
|33.21||53.45||227||Daisy Mountain Drive|
|New River||38.20||61.48||232||New River|
|42.18||67.88||236||Table Mesa Road|
|Yavapai||Black Canyon City||48.29||77.72||242||I-17 Bus. north – Black Canyon City, Rock Springs|
|50.56||81.37||244||I-17 Bus. south – Black Canyon City|
|54.36||87.48||248||Bumble Bee, Crown King|
|58.48||94.11||252||Sunset Point, Rest Area|
|61.85||99.54||256||Badger Springs Road||The Mystery tree of Arizona is located south of this exit|
|65.23||104.98||259||Bloody Basin Road – Crown King|
|68.44||110.14||262||SR 69 north / Cordes Junction Road – Prescott||Signed as exits 262A (Cordes Junction Road) and 262B (SR 69) southbound|
|74.53||119.94||268||Orme Road / Dugas Road|
|84.16||135.44||278||SR 169 (Cherry Road)|
|Camp Verde||91.31||146.95||285||General Crook Trail|
|93.06||149.77||287||SR 260 to SR 89A – Cottonwood, Payson|
|95.74||154.08||289||Montezuma Castle National Monument|
|99.04||159.39||293||CR 30 – McGuireville, Cornville, Montezuma Well|
|104.75||168.58||298||SR 179 – Sedona, Oak Creek Canyon|
|112.09||180.39||306||Stoneman Lake Road|
|Coconino||121.37||195.33||315||Rocky Park Road|
|123.65||199.00||317||Fox Ranch Road|
|126.29||203.24||320||Schnebly Hill Road|
|132.01||212.45||326||Willard Springs Road|
|134.55||216.54||328||Newman Park Road|
|136.90||220.32||331||Kelly Canyon Road|
|139.65||224.74||333||Kachina Boulevard / Mountainaire Road|
|Flagstaff||143.17||230.41||337||SR 89A south – Sedona, Flagstaff Pulliam Airport||South end of SR 89A overlap|
|145.55||234.24||339||Lake Mary Road – Mormon Lake||Northbound exit only|
|145.76||234.58||340||I-40 – Los Angeles, CA, Albuquerque, NM||Signed as exits 340A (east) and 340B (west)|
|145.83||234.69||–||SR 89A north – Flagstaff, Grand Canyon||Northern terminus, continues north as SR 89A|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
- Arizona Department of Transportation. "2008 ADOT Highway Log". Retrieved 2008-04-30.
- Google Inc. "overview map of I-17". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?f=d&hl=en&geocode=2790773938709236001,33.427409,-112.042960%3B5160041869956207009,35.177317,-111.661367&saddr=I-17+N+%4033.427409,+-112.042960&daddr=35.177316,-111.661563&mra=dme&mrcr=0&mrsp=1&sz=15&sll=35.172966,-111.671391&sspn=0.015856,0.028925&ie=UTF8&ll=34.347971,-111.934204&spn=2.049897,3.691406&z=8. Retrieved 2008-02-15.
- Rand McNally (1938). Arizona and New Mexico Road Map (Map). http://www.arizonaroads.com/maps/index.html. Retrieved 2011-11-27.
- Arizona Department of Transportation. "ADOT Right-of-Way Resolution 1936-P-624". Retrieved 2008-04-22.
- Rand McNally (1961). State Highway Department Road Map of Arizona (Map). http://www.arizonaroads.com/maps/index.html. Retrieved 2011-11-27.
- Arizona State Highway Department (1971). State Highway Department Road Map of Arizona (Map). http://www.arizonaroads.com/maps/index.html. Retrieved 2011-11-27.
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