Interstate 17

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Interstate 17 marker

Interstate 17
Route information
Maintained by ADOT
Length: 145.76 mi[1] (234.58 km)
Major junctions
South end: I‑10 / US 60 in Phoenix
 
North end: SR 89A at McConnell Drive in Flagstaff
Highway system
  • State Routes in Arizona
I‑15 I‑19

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.[1] 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.

Route description[edit]

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.[1][2]

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.[1][2]

History[edit]

In 1936, SR 69 was established as a state route from Phoenix north to Prescott.[3][4] 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.[5] 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.[6]

Exit list[edit]

County Location Mile[1] km Exit Destinations Notes
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, exit 194 is for 10 west
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
5.34 8.59 199A Grant Street
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
7.05 11.35 200B McDowell Road
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
10.08 16.22 203 Camelback Road
11.09 17.85 204 Bethany Home Road
12.09 19.46 205 Glendale Avenue
13.09 21.07 206 Northern Avenue
14.14 22.76 207 Dunlap Avenue
15.13 24.35 208 Peoria Avenue
16.13 25.96 209 Cactus Road
17.12 27.55 210 Thunderbird Road
18.12 29.16 211 Greenway Road
19.13 30.79 212 Bell 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
25.23 40.60 219 Jomax 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
Anthem 31.70 51.02 225 Pioneer Road
33.21 53.45 227 Daisy Mountain Drive
35.24 56.71 229 Anthem Way
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
  128.51 206.82 322 Munds Park
  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)
145.83 234.69 341 SR 89A north – Flagstaff, Grand Canyon Northern terminus, continues north as SR 89A; exit 341 is for McConnell Drive northbound
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also[edit]

References[edit]

External links[edit]

Route map: Google / Bing