State Route 410, 473, 51 and 564 in Arizona

State Route 410 in Arizona

Get started Tucson
End Tucson
Length 16 mi
Length 26 km

State Route 410, possibly in the future Interstate 410, also known as the Sonoran Corridor is a planned freeway in the US state of Arizona. The highway is to form a southeast bypass of Tucson and is 16 miles long.

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Travel directions

The highway will connect Interstate 19 south of Tucson and Interstate 10 east of Tucson and will run southeast of Tucson Airport.


The Sonoran Corridor is listed as an ‘auxiliary interstate highway ‘. Estimated to cost $600 million, it is the largest road project in Pima County since the 1960s. It is not yet known when construction will start.

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State Route 473 in Arizona

Get started Hawley Lake
End SR-260
Length 10 mi
Length 16 km
Hawley Lake

State Route 473 is a state route in the U.S. state of Arizona. The road passes through uninhabited land in the east of the state and connects Hawley Lake with State Route 260 east of McNary. The road is 10 miles long and paved, and ends at Hawley Lake. The lake has some fame as it is often the coldest place in Arizona. The lowest temperature ever recorded in Arizona was -40°C on January 7, 1971 in Hawley Lake. 300 vehicles use the road every day.

State Route 51 in Arizona

SR 51
Get started Phoenix
End Phoenix
Length 17 mi
Length 27 km
0 → Los Angeles / Tucson1 McDowell Road

2 Thomas Road

3 Indian School Road

4 Highland Avenue

5 Glendale Avenue

7 Northern Avenue

8 32nd Street

9 Shea Boulevard

10 Cactus Road

11 Thunderbird Road

12 Greenway Road

13 Bell Road

14 Union Hills Road

15 → Phoenix Beltway

State Route 51 or SR-51 is a state route and freeway in the U.S. state of Arizona. The highway forms a north-south route in the city of Phoenix and runs from downtown Phoenix on Interstate 17 to north Phoenix at Loop 101, Phoenix’s ring road. The route is 27 kilometers long.

Travel directions

The mini-stack, junction between the SR-51 and SR-202.

The highway begins as the Papago Freeway at the Phoenix Airport at an interchange with Interstate 17. I-17 parallels SR-51 to the north, but I-17 has a through function to Flagstaff, and SR-51 is primarily a commuter highway. The highway has 2×4 lanes here, including an HOV lane. It passes east of downtown along to the north, where it intersects Interstate 10, the highway from Los Angeles toward Tucson. This interchange is the busiest in the Phoenix metropolitan area. Hereafter the SR-51 is called the Piestewa Freewayand has 2×5 lanes including HOV lanes. One then enters the extensive residential areas north of the center. There is an exit with a major east-west road at exactly every mile. A little further north there are 2×4 lanes, but there is a weaving section between each turn, bringing the total number of lanes between each turn to 10. There are 2×6 lanes of traffic through the Camelback Mountains, a small mountain range in Phoenix. Then the road narrows to 2×3 lanes, approaching the end of the highway. The highway ends in northern Phoenix on SR-101, the city’s beltway.


The route of the highway was established in 1968 as the SR-510, as it was intended to be turned into I-510. Construction of the highway was slow, however, and did not begin until 1986. The southernmost section was opened between 1986 and 1991, up to Glendale Avenue, after which the highway crosses a ridge to reach northern Phoenix. The highway was then built northward and the last section up to Loop 101 opened to traffic on May 31, 2003. In 2007 and 2008, the southern part of the highway was widened to 2×4 lanes, including HOV lanes.

The highway was originally called the Squaw Peak Freeway, after the ridge the highway runs through. This name was seen as inappropriate, as “squaw” is a pejorative term for Native American woman. In 2003, both the mountain and the highway were renamed after Lori Piestewa, an Arizona Native American who served in the United States Army. She was the first Native American to die abroad. The highway has since been called the Piestewa Freeway, although the name is not yet well established.

Traffic intensities

# 2013
Exit 1 151,000
Exit 1B McDowell Road 150,000
Exit 2 Thomas Road 151,000
Exit 3 Indian School Road 142,000
Exit 4A Highland Avenue 135,000
Exit 4B Colter Street 124,000
Exit 5 Bethany Home Road 135,000
Exit 6 Glendale Avenue 142,000
Exit 7 Northern Avenue 146,000
Exit 8 32nd Street 131,000
Exit 9 Shea Boulevard 124,000
Exit 10 Cactus Road 114,000
Exit 11 Thunderbird Road 104,000
Exit 12 Greenway Road 95,000
Exit 13 Bell Road 83,000
Exit 14 Union Hills Drive 84,000

State Route 564 in Arizona

Get started US 160
End Navajo National Monument
Length 9 mi
Length 15 km
Navajo National Monument

State Route 564 is a state route in the U.S. state of Arizona. The road branches off from US 160 to the Navajo National Monument in the north of the state, southwest of Kayenta. There are no places on the route, but the road is paved. 200 vehicles use the road every day.

State Route 564 in Arizona