The Stack
Encyclopedia
The Stack is a colloquialism
used to describe the symmetrical, four-level stack interchange
in Downtown Phoenix
in the U.S. state
of Arizona
that facilitates movements between Interstate 17
/U.S. Route 60
and Interstate 10
.
eastbound and westbound; and an average of 120,000 cars on northbound and southbound Interstate 17
. The interchange constitutes exit 200A on Interstate 17 and exits 143A and 143B on Interstate 10
. Access is provided in all directions and there are no direct HOV lane connections. Interstate 17 has two frontage road
s running both southbound and northbound through the interchange known as Black Canyon
Highway.
US 60
runs concurrently with I-17 throughout this interchange.
and Arizona's first four-level stack interchange
upon its completion in 1990 and one of the last portions of I-10 in Arizona to be completed.
, the Stack ranked number twelve in the United States
in terms of delays with 16 million hours of delays each year. This is much better than the Mini Stack
, which logged 22 million hours of delays, the fourth-worst in the nation.
Colloquialism
A colloquialism is a word or phrase that is common in everyday, unconstrained conversation rather than in formal speech, academic writing, or paralinguistics. Dictionaries often display colloquial words and phrases with the abbreviation colloq. as an identifier...
used to describe the symmetrical, four-level stack interchange
Stack interchange
A stack interchange is a free-flowing grade separated junction between two roads.In countries where one drives on the right, left turns are handled by semi-directional flyover/under ramps...
in Downtown Phoenix
Downtown Phoenix
Downtown Phoenix is the central business district of Phoenix, Arizona, United States. It is located near the geographic center of the Phoenix metropolitan area or Valley of the Sun. Phoenix, being the county seat of Maricopa County and the capital of Arizona, serves as the center of politics,...
in the U.S. state
U.S. state
A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...
of Arizona
Arizona
Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...
that facilitates movements between Interstate 17
Interstate 17
Interstate 17 , also known as the Black Canyon Freeway, is an intrastate 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...
/U.S. Route 60
U.S. Route 60 in Arizona
U.S. Route 60 is an east–west United States highway within Arizona. The highway runs for from a junction with Interstate 10 near Quartzsite to the New Mexico State Line near Springerville...
and Interstate 10
Interstate 10 in Arizona
In the U.S. state of Arizona, Interstate 10, the major east–west Interstate Highway in the southern United States, runs east from California, enters Arizona and continues through Phoenix and Tucson and exits at the border with New Mexico.-Route description:...
.
Description
In 2006, the Stack interchange saw an average of 235,000 cars pass through it daily on Interstate 10Interstate 10 in Arizona
In the U.S. state of Arizona, Interstate 10, the major east–west Interstate Highway in the southern United States, runs east from California, enters Arizona and continues through Phoenix and Tucson and exits at the border with New Mexico.-Route description:...
eastbound and westbound; and an average of 120,000 cars on northbound and southbound Interstate 17
Interstate 17
Interstate 17 , also known as the Black Canyon Freeway, is an intrastate 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 interchange constitutes exit 200A on Interstate 17 and exits 143A and 143B on Interstate 10
Interstate 10 in Arizona
In the U.S. state of Arizona, Interstate 10, the major east–west Interstate Highway in the southern United States, runs east from California, enters Arizona and continues through Phoenix and Tucson and exits at the border with New Mexico.-Route description:...
. Access is provided in all directions and there are no direct HOV lane connections. Interstate 17 has two frontage road
Frontage road
A frontage road is a non-limited access road running parallel to a higher-speed road, usually a freeway, and feeding it at appropriate points of access...
s running both southbound and northbound through the interchange known as Black Canyon
Black Canyon City, Arizona
Black Canyon City is a census-designated place in Yavapai County, Arizona, United States. The population was 2,697 at the 2000 census.-Geography:Black Canyon City is located at , at an elevation of 1,975 feet ....
Highway.
US 60
U.S. Route 60 in Arizona
U.S. Route 60 is an east–west United States highway within Arizona. The highway runs for from a junction with Interstate 10 near Quartzsite to the New Mexico State Line near Springerville...
runs concurrently with I-17 throughout this interchange.
History
The stack was the Phoenix Metropolitan AreaPhoenix Metropolitan Area
The Phoenix metropolitan area, often referred to as The Valley of the Sun, is a metropolitan area, centered on the city of Phoenix, that includes much of the central part of the US state of Arizona...
and Arizona's first four-level stack interchange
Stack interchange
A stack interchange is a free-flowing grade separated junction between two roads.In countries where one drives on the right, left turns are handled by semi-directional flyover/under ramps...
upon its completion in 1990 and one of the last portions of I-10 in Arizona to be completed.
Congestion
In a 2007 study by ForbesForbes
Forbes is an American publishing and media company. Its flagship publication, the Forbes magazine, is published biweekly. Its primary competitors in the national business magazine category are Fortune, which is also published biweekly, and Business Week...
, the Stack ranked number twelve in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
in terms of delays with 16 million hours of delays each year. This is much better than the Mini Stack
Mini Stack
The Mini Stack is the freeway interchange among Interstate 10, State Route 51, and Loop 202 in Phoenix, Arizona, United States, located northeast of downtown...
, which logged 22 million hours of delays, the fourth-worst in the nation.
See also
- Metropolitan Phoenix freeways
- SuperRedTan InterchangeSuperRedTan InterchangeThe SuperRedTan Interchange is a symmetrical four-level freeway interchange in eastern Mesa, Arizona. Completed in 2007, the interchange provides access between U.S. Route 60 and Loop 202. It is fully directional, meaning that a motorist traveling towards the interchange in any direction can exit...
- Mini StackMini StackThe Mini Stack is the freeway interchange among Interstate 10, State Route 51, and Loop 202 in Phoenix, Arizona, United States, located northeast of downtown...