High Five Interchange

High Five Interchange
High Five Interchange
	The High Five Interchange in 2007, viewed from the south
Location
	Dallas, Texas
Coordinates	32°55′27″N 96°45′49″W / 32.92417°N 96.76361°W
Roads at; junction	US 75 (Central Expressway); I-635 (LBJ Freeway)
Construction
Type	Five-level stack interchange
Constructed	2002–2005 by Zachry Construction Corporation
Opened	December 2005
Maximum; height	120 ft (37 m)
Maintained by	Texas Department of Transportation

The High Five Interchange is one of the first five-level stack interchanges built in Dallas, Texas. Located at the junction of the Lyndon B. Johnson Freeway (Interstate 635, or I-635) and the Central Expressway (U.S. Highway 75, or US 75), it replaces an antiquated combination interchange constructed in the 1960s.

The $261-million (equivalent to $423 million in 2023^[1]) project was started in 2002 and completed in December 2005.^[2] It was designed by HNTB and built by Zachry Construction Corporation.

The interchange is considered by Popular Mechanics to be one of "The World's 18 Strangest Roadways" because of its height (as high as a 12-story building), its 43 permanent bridges, and other unusual design and construction features.^[3] In 2006, the American Public Works Association (APWA) named the High Five Interchange as "Public Works Projects of the Year".^[4]

^ Johnston, Louis; Williamson, Samuel H. (2023). "What Was the U.S. GDP Then?". MeasuringWorth. Retrieved November 30, 2023. United States Gross Domestic Product deflator figures follow the MeasuringWorth series.
^ "TxDOT History: 2005 to 2001". Texas Department of Transportation. Archived from the original on February 20, 2012. Retrieved January 2, 2012.
^ Sweeney, Chris (December 17, 2009). "The World's 18 Strangest Roadways: Gallery". Popular Mechanics. ISSN 0032-4558. Archived from the original on February 9, 2015. Retrieved January 2, 2012.
^ Cite error: The named reference apwa_award was invoked but never defined (see the help page).

[inflation-USGDP-1] Johnston, Louis; Williamson, Samuel H. (2023). "What Was the U.S. GDP Then?". MeasuringWorth. Retrieved November 30, 2023. United States Gross Domestic Product deflator figures follow the MeasuringWorth series.

[txdot_history-2] "TxDOT History: 2005 to 2001". Texas Department of Transportation. Archived from the original on February 20, 2012. Retrieved January 2, 2012.

[popmech-3] Sweeney, Chris (December 17, 2009). "The World's 18 Strangest Roadways: Gallery". Popular Mechanics. ISSN 0032-4558. Archived from the original on February 9, 2015. Retrieved January 2, 2012.

[apwa_award-4] Cite error: The named reference apwa_award was invoked but never defined (see the help page).

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