Interstate 17
Arizona Veterans Highway
I-17 highlighted in red
Route information
Maintained byADOT
Length	145.93 mi[1] (234.85 km)
Existed	1957[2]–present
History	Completed in 1978
NHS	Entire route
Major junctions
South end	I-10 /US 60 inPhoenix
Major intersections	I-10 in Phoenix US 60 in Phoenix Loop 101 in Phoenix Loop 303 in Phoenix SR 74 in Phoenix SR 69 inCordes Lakes SR 169 nearDewey-Humboldt SR 260 inCamp Verde SR 179 nearSedona SR 89A inFlagstaff
North end	I-40 /SR 89A in Flagstaff
Location
Country	United States
State	Arizona
Counties	Maricopa,Yavapai,Coconino
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future Arizona State Highway System Interstate US State Scenic Proposed Former
←I-15 →I-19

Interstate 17 (I-17) is a north–southInterstate Highway located entirely within the US state ofArizona. I-17's southern terminus lies inPhoenix, atI-10/US 60 and its northern terminus is inFlagstaff, atI-40.^[1]

Most of I-17 is known as theArizona Veterans Highway. In the Phoenix metropolitan area, it is mostly known as theBlack Canyon Freeway, however, the southern 4.16 miles (6.69 km) are part of theMaricopa Freeway. The portion of the highway south ofCordes Lakes was built along the alignment ofState Route 69 (SR 69), while the northern part was built along oldSR 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 thePhoenix Metropolitan Area to a point 2.2 miles (3.5 km) south ofThe Stack interchange withI-10 northwest ofDowntown Phoenix. (It is accompanied byfrontage roads for most of this portion, and they carry theBlack CanyonHighway name to distinguish from thefreeway 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 secondI-10 junction. It is one of the metropolitan area'sprimary freeways.^[3][4] It has two interchanges with I-10 in Phoenix.^[4]

The northern portion of theB Line of theValley Metro Rail system runs over a bridge of I-17 from Mountain View Road to Metro Parkway, serving one station atMetro Parkway.

I-17 ends atI-40 andSR 89A (Milton Road) inFlagstaff.

• 
  "The Stack", intersection of I-10 and I-17. Looking north up I-17, downtown Phoenix.
• 
  Southern terminus atI-10 inPhoenix
• 
  View of theRed Rocks of Sedona from I-17, just south ofMunds Park
• 
  I-17 nearFlagstaff
• 
  Northern terminus atI-40 as seen from 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.^[5]

In 1936, SR 69 was established as a state route from Phoenix north toPrescott.^[6][7] 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,^[5] but not to Interstate standards.^[8] It was incorporated into the newInterstate Highway System, established by the federal government later that year, and designated as part of I-17.^[5]

The first interchange on the Black Canyon Freeway was built in 1950 west of downtown Phoenix and was extended to Grand Avenue in 1957.^[2][5] The freeway was extended to McDowell Road by 1971 and out of the Phoenix suburbs by 1974, at a cost of $33 million.^[2] 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 fromSR 279 (nowSR 260) north toSR 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 crossroads. The portion from I-40 south to theFlagstaff Municipal Airport had been completed by this time.^[9] The final section of I-17, near Camp Verde and Montezuma Castle, began construction in February 1977 and opened to traffic in August 1978.^[5][10]

In 1993, officials in Arizona proposed an extension of I-17 to connect withI-15 inUtah.^{[11][clarification needed]}

The existing interchange with Happy Valley Road in Phoenix was converted to adiverging diamond interchange (DDI). The project was finished in the fall of 2020.^[12]

Due to increasing weekend traffic on I-17 between the Phoenix area and northern Arizona, primarily between Phoenix in the south, and Sedona, Flagstaff, and the Grand Canyon in the north, ADOT started plans to widen a 34-mile (55 km) section of four-lane freeway between Anthem and the Sunset Point Rest Area in 2018.^[13] In 2021, the design was chosen, with a standard third general-purpose lane set to be added in both directions between Anthem and Black Canyon City, but due to the mountainous topography north of Black Canyon City to Sunset Point, two flex lanes will be added in a separate carriageway next to the existing southbound lanes.^[14] The lanes will be allocated depending on whichever direction has the most traffic, generally this will be northbound traffic from Monday through Saturday, and southbound traffic on Sundays. A combination of six different safety systems (vehicle arresting barriers, automated arm gates, concrete barriers, steel gates, dynamic messaging signs, and cameras) will control access to these lanes.^[15] Construction began in 2022 and in May 2025, the additional lanes from Anthem to Black Canyon City opened.^[16][17] The flex lanes are scheduled to be completed by the end of 2025.^[13][18]

I-17 has the unusual distinction of starting at approximately milepost 194 instead of at milepost 0.^[19] 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.^[20] I-17 inherited its milepost locations fromSR 69, which the freeway replaced between Phoenix and Cordes Junction.^[21] SR 69's mileposting was such that it coincided withUS 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.^[3] 

County	Location	mi[3]	km	Exit	Destinations	Notes
Maricopa	Phoenix	0.00	0.00		I-10 east /US 60 east –Globe,Tucson	Southern end of US 60 concurrency; southern terminus; Maricopa Freeway continues east as I-10/US 60; I-10 exit 150A
		0.31	0.50	194	I-10 west –Sky Harbor	Southbound exit and northbound entrance; I-10 exit 150B
		1.14	1.83	195A	16th Street	Southbound exit and northbound entrance
		2.15	3.46	195B	7th Street /Central Avenue	No southbound signage for Central Avenue
		3.16	5.09	196	7th Avenue /Central Avenue	No northbound signage for Central Avenue
		4.16	6.69	197	19th Avenue / Durango Street	No northbound signage for Durango Street
					SR 30 west (Tres Rios Freeway)	Planned interchange atDurango Curve
				West end ofMaricopa Freeway South end of Black Canyon Freeway
		5.03	8.10	198	Buckeye Road (Historic US 80)	Northbound exit only
		5.34	8.59	199A	Grant Street / Buckeye Road (Historic US 80)	No northbound signage for Buckeye Road
		5.73	9.22	199B	Jefferson Street	Southbound exit only
		5.88	9.46		Adams Street /Van Buren Street	Northbound exit and entrance only; Van Buren Street is formerI-10 BL
		6.49	10.44	200A	I-10 –Central Phoenix,Los Angeles	The Stack; I-10 exit 143
		7.05	11.35	200B	McDowell Road /Van Buren Street	No northbound signage for Van Buren Street
		7.84	12.62		US 60 west (Grand Avenue)	Planned HOV-only interchange; northbound exit and southbound entrance; to be northern end of US 60 concurrency[22]
				—	US 60 /US 89 /SR 93 (Grand Avenue)	Closed in the 1980s; formerUS 60/US 70/US 89/SR 93
		8.09	13.02	201	Thomas Road toUS 60 west (Grand Avenue)	Northern end of US 60 concurrency; no southbound signage for Grand Avenue
		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	214A-B	Union Hills Drive / Yorkshire Drive	Signed separately as exits 214A (Union Hills) and 214B (Yorkshire) northbound; Union Hills Drive was formerly signed as exit 213
		21.11	33.97	214C	Loop 101	Loop 101 exits 23B-C; northbound entrance includes direct exit ramp onto Deer Valley Road (exit 215B)
		21.66– 22.16	34.86– 35.66	215	Rose Garden Lane / Deer Valley Road	Signed as exit 215A northbound and 215B southbound
		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	221A	Loop 303 south (Bob Stump Memorial Parkway)	Future flyover interchange; to be signed as exit 221B southbound; Loop 303 exits 138A-B; future clockwise terminus of Loop 303[23]
				221	Loop 303 south (Bob Stump Memorial Parkway) / Sonoran Desert Drive	Loop 303 exit 138; current clockwise terminus of Loop 303
				Northern terminus of Black Canyon Freeway
		29.17	46.94	222	Dove Valley Road
		30.17	48.55	223	SR 74 west (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
Maricopa–Yavapai county line	Black Canyon City	48.29	77.72	242	Black Canyon City,Rock Springs	Former I-17 BL north; No southbound entrance
Yavapai		50.56	81.37	244	Black Canyon City	Former I-17 BL south
	​			—	I-17 north (Flex Lanes)	South end of reversible Flex lanes
	​	54.36	87.48	248	Bumble Bee,Crown King	No access to or from Flex Lanes
	​			—	I-17 south (Flex Lanes)	North end of reversible Flex lanes; no access to southbound Flex Lanes from Sunset Point Rest Area
	​	58.48	94.11	252	Sunset Point Rest Area and Scenic View	Frontage roads provide all-direction access to a unified Rest Area / Scenic View off west side of freeway
	​	61.85	99.54	256	Badger Springs Road
	Cordes Lakes	65.23	104.98	259	Bloody Basin Road
		68.44	110.14	262	SR 69 north / Cordes Lakes Road –Prescott	Northbound exit and southbound entrance
		68.77	110.67	263	Arcosanti Road toSR 69 north –Prescott	Northbound exit signed as Arcosanti Road only
	​	74.53	119.94	268	Orme Road / Dugas Road
	​	84.16	135.44	278	SR 169 south –Dewey-Humboldt,Prescott	Northern terminus of SR 169
	​	89.04	143.30	283	Runaway Truck ramp	Northbound left exit and southbound left entrance
	Camp Verde	91.31	146.95	285	General Crook Trail
		93.06	149.77	287	SR 260 toSR 89A –Cottonwood,Payson	FormerSR 279
		95.74	154.08	289	Montezuma Castle National Monument
	Verde River			Dan Bell Memorial Bridge
	Lake Montezuma	99.04	159.39	293	CR 30 west –McGuireville,Cornville,Montezuma Well	Eastern terminus of CR 30
	​	102.29– 102.36	164.62– 164.73	McGuireville Rest Areas
	​	104.75	168.58	298	SR 179 north –Sedona	Southern terminus of SR 179
	​	106.00	170.59	300	Runaway Truck ramp	Southbound exit only
	​	112.09	180.39	306	Stoneman Lake Road
Coconino	​	118.67	190.98	Scenic View (southbound only)
	​	121.37	195.33	315	Rocky Park Road
	​	123.65	199.00	317	Fox Ranch Road
	​	126.29	203.24	320	Schnebly Hill Road
	Munds Park	128.51	206.82	322	Munds Park
		129.04	207.67	Christensen Rest Areas
	​	132.01	212.45	326	Willard Springs Road
	​	134.55	216.54	328	Newman Park Road
	​	136.90	220.32	331	Kelly Canyon Road
	Kachina Village	139.65	224.74	333	Kachina Boulevard / Mountainaire Road
	Flagstaff	143.17	230.41	337	SR 89A south (John Wesley Powell Boulevard) –Sedona,Flagstaff Pulliam Airport	Southern end of SR 89A concurrency
		145.55	234.24	339	Lake Mary Road –Mormon Lake	Northbound exit only
		145.76	234.58	340	I-40 –Los Angeles,Albuquerque SR 89A north –Flagstaff,Grand Canyon	Northern end of SR 89A concurrency; signed as exits 340A (east) and 340B (west); I-40 exit 195; freeway continues as SR 89A north (former SR 79)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Closed/former       Concurrency terminus       Proposed       Incomplete access       Route transition

State Business Route 17
Location	Black Canyon City
Length	3 mi (4.8 km)
Existed	2011

State Business Route 17 (also known asSR 17 Bus.) was a former three-mile (4.8 km) business loop of I-17 that served the west side ofBlack Canyon City,Arizona. SR 17 Bus. followed Old Black Canyon Highway (formerlySR 69 before I-17 replaced most of the route betweenPhoenix andCordes Junction) from exit 242 south of town at a diamond interchange to another diamond interchange at exit 244 north of town. The business route was subsequently transferred from state to local maintenance and because of ADOT's policy of not signing business loops on nonstate maintained roadways, the route was decommissioned in 2011.^{[citation needed]}

Major intersections
The entire route was inBlack Canyon City.

County	mi	km	Destinations	Notes
Maricopa–Yavapai county line	0.000	0.000	I-17 –Phoenix,Flagstaff	Southern terminus; I-17 exit 242
Yavapai	3.000	4.828	I-17 –Flagstaff,Phoenix	Northern terminus; I-17 exit 244
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

• Roads and freeways in metropolitan Phoenix
• Interstate 19

Wikimedia Commons has media related toInterstate 17.

• I-17 at ArizonaRoads.com
• Google Maps I-17

• Freeways in the Phoenix metropolitan area
• Interstate Highway System
• Interstate Highways in Arizona
• Transportation in Maricopa County, Arizona
• Transportation in Yavapai County, Arizona
• Transportation in Coconino County, Arizona

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