Editing Interstate 77 (section)

==Route description==
{{More citations needed section|date=October 2023}}
{{Lengths table|length_ref=<ref name="fhwa" />}}
|-
|[[Interstate 77 in South Carolina|SC]]
|{{Convert|91.05|mi|km|disp=table}}
|-
|[[Interstate 77 in North Carolina|NC]]
|{{Convert|105.50|mi|km|disp=table}}
|-
||[[Interstate 77 in Virginia|VA]]
|{{Convert|69.40|mi|km|disp=table}}
|-
|[[Interstate 77 in West Virginia|WV]]
|{{Convert|187.21|mi|km|disp=table}}
|-
|[[Interstate 77 in Ohio|OH]]
|{{Convert|160.13|mi|km|disp=table}}
|-
|Total
|{{Convert|610.10|mi|km|disp=table}}
|}
===South Carolina===
{{Main|Interstate 77 in South Carolina}}
[[File:Southern terminus of I-77 at I-26 in Columbia, South Carolina.jpg|right|thumb|I-77 southbound ends at I-26]]
I-77 begins as an eight-lane highway at I-26 in the far southwestern part of the [[Columbia metropolitan area, South Carolina|Columbia metropolitan area]]. In the Columbia area, I-77 offers access to [[Fort Jackson (South Carolina)|Fort Jackson]] before meeting [[Interstate 20|I-20]] in the northeastern part of the city. This segment of I-77, combined with I-20 and I-26, form a [[beltway]] around Columbia, though it is not officially designated as such.

After leaving the northern Columbia suburb of [[Blythewood, South Carolina|Blythewood]], I-77 narrows to four lanes until it widens to eight lanes at [[Rock Hill, South Carolina|Rock Hill]] from exit&nbsp;77 to the North Carolina state line at [[Interstate 485|I-485]].

The final section of the entire length of I-77 was completed in Columbia in 1995.

===North Carolina===
{{Main|Interstate 77 in North Carolina}}
[[File:I-77-US21-Woodlawn-BillyGraham-OverheadSign.jpg|left|thumb|250px|Woodlawn Road and Billy Graham Parkway overhead sign in Charlotte, North Carolina]]
I-77 through North Carolina begins at the South Carolina state line at [[Pineville, North Carolina|Pineville]]. It narrows to six lanes on the North Carolina side south of [[Charlotte, North Carolina|Charlotte]] and then widens to 8 and 10&nbsp;lanes through downtown before entering the North Carolina [[Piedmont (United States)|Piedmont]] region. In Charlotte, it intersects [[Interstate 85|I-85]] as well as intersecting each of the loops of [[Interstate 485|I-485]] and [[Interstate 277 (North Carolina)|I-277]] (twice). North of Charlotte, it skirts [[Lake Norman]] where it narrows again to four lanes before passing through [[Huntersville, North Carolina|Huntersville]], [[Cornelius, North Carolina|Cornelius]], [[Davidson, North Carolina|Davidson]], and [[Mooresville, North Carolina|Mooresville]]. At [[Statesville, North Carolina|Statesville]], {{Convert|40|mi|km}} north of I-85, it intersects [[Interstate 40|I-40]] and [[U.S. Route 70|US&nbsp;70]]. Next, it crosses over [[U.S. Route 421|US&nbsp;421]] in [[Yadkin County, North Carolina|Yadkin County]] and continues on through [[Elkin, North Carolina|Elkin]]. The final intersection in the state is with a discontinuous section of [[Interstate 74|I-74]] near [[Mount Airy, North Carolina|Mount Airy]].

I-77 in Charlotte is also known as the Bill Lee Freeway; this designation stretches from exit&nbsp;6 (South Tryon Street/Woodlawn Road) in Charlotte to exit&nbsp;33 (US&nbsp;21 north), near Mooresville. A {{Convert|6|mi|km|adj=on|spell=in}} portion south of the city is called the General Younts Expressway. When I-77 crosses over I-85 (which runs in an east–west direction through the interchange), the northbound lanes are to the west of the southbound lanes.

North Carolina completed its section of I-77 in 1975.

===Virginia===
{{Main|Interstate 77 in Virginia}}
[[File:I77NCline.jpg|thumb|right|250px|I-77 entering North Carolina from Virginia]]
I-77 through Virginia passes through two tunnels: the [[Big Walker Mountain Tunnel|Big Walker]] and [[East River Mountain Tunnel|East River]] mountain tunnels. For {{Convert|8|mi|km|spell=in}}, I-77 and [[Interstate 81|I-81]] overlap near [[Wytheville, Virginia|Wytheville]]. This is a [[wrong-way concurrency]], where two roads run concurrent with each other but are designated in opposite directions. For its entire length in Virginia, I-77 is either parallel to or [[Concurrency (road)|concurrent]] with [[U.S. Route 52|US&nbsp;52]]. It will have a concurrency with [[Interstate 74|I-74]] throughout the state. 

On March 31, 2013, there was a nearly 100-car pileup on I-77 near [[Fancy Gap, Virginia|Fancy Gap]]; as a result of that crash, electronic variable speed limit signs are now in place along that stretch of I-77. The speed limit can be adjusted according to driving conditions at any given time.

===West Virginia===
{{Main|Interstate 77 in West Virginia}}
[[File:East River Mt Tunnel.JPG|thumb|left|250px|Northbound at the East River Mountain Tunnel, at the border of Virginia and West Virginia]]
I-77 enters [[West Virginia]] through the [[East River Mountain Tunnel]]. At milepost&nbsp;9, I-77 becomes cosigned with the [[West Virginia Turnpike]] for the next {{Convert|88|mi|km}}, a [[toll road]] between [[Princeton, West Virginia|Princeton]] and [[Charleston, West Virginia|Charleston]]. It is concurrent with [[Interstate 64|I-64]] to Charleston at [[Beckley, West Virginia|Beckley]]. The speed limit is {{convert|70|mph|km/h|abbr=on}} for most of the length, with a {{convert|60|mph|km/h|adj=on}} limit for the section between [[Marmet, West Virginia|Marmet]] and the toll plaza near [[Pax, West Virginia|Pax]].

It enters Charleston via the Yeager Bridge before splitting off at a four-level junction with I-64. {{Convert|2|mi|km|spell=In}} north of the city center, it junctions with [[Interstate 79|I-79]], before proceeding north to [[Ripley, West Virginia|Ripley]] and [[Parkersburg, West Virginia|Parkersburg]].

North of Charleston, I-77 is known as the Korean War Veterans Memorial Highway.

===Ohio===
{{Main|Interstate 77 in Ohio}}
[[File:I-90i-71junction.jpg|200px|right|thumb|I-90 near the [[Interstate 71|I-71]] to I-77 interchange in [[Cleveland, Ohio]]]]
Entering from [[West Virginia]] at [[Marietta, Ohio|Marietta]], I-77 passes through rolling Appalachian terrain.

The [[Interchange (road)|interchange]] with I-70 at Cambridge is (or at least at one time was) thought to be the largest interchange in the world, covering over {{convert|300|acre|ha}}.

I-77 continues north through [[Canton, Ohio|Canton]] and then Akron, where it connects with I-76. The interchange with I-80, the Ohio Turnpike, between Akron and Cleveland was completed in December 2001;<ref>{{cite news |last=Exner |first=Rich |date=December 2, 2001 |title=Turnpike ramps to I-77 open tomorrow |url=http://infoweb.newsbank.com/iw-search/we/InfoWeb?p_action=doc&p_topdoc=1&p_docnum=1&p_sort=YMD_date:D&p_product=NewsBank&p_text_direct-0=document_id=(%200F2DBD5A1CF6B647%20)&p_docid=0F2DBD5A1CF6B647&p_theme=aggregated5&p_queryname=0F2DBD5A1CF6B647&f_openurl=yes&p_nbid=R5DH53BMMTIxMzY2NjI4OC43MzgyMTY6MToxMjoxOTguMzAuMjI4LjA&&p_multi=CPDB |access-date=June 16, 2008 |work=[[The Plain Dealer]] |language=en-US |issn=2641-4058}}</ref><ref>{{cite news |date=December 3, 2001 |title=Ohio Turnpike, I-77 Interchange Opens To Traffic |url=http://www.newsnet5.com/news/1100039/detail.html |url-status=dead |archive-url=https://web.archive.org/web/20081015015456/http://www.newsnet5.com/news/1100039/detail.html |archive-date=October 15, 2008 |access-date=June 16, 2008 |work=[[WEWS-TV]] |language=en-US}}</ref> previously, traffic had to exit at [[Ohio State Route 21|State Route&nbsp;21]] (SR&nbsp;21) to access the turnpike. I-77 ends at I-90 in Cleveland.

I-77 is also known as the Vietnam Veterans Memorial Highway in Ohio<ref>{{Cite web |title=5533.37 Vietnam Veterans' of America highway |url=http://codes.ohio.gov/orc/5533.37 |url-status=live |archive-url=https://web.archive.org/web/20111001055547/http://codes.ohio.gov/orc/5533.37 |archive-date=October 1, 2011 |website=LAWriter - Ohio Laws and Rules |publisher=[[Ohio Revised Code]]}}</ref> and the Willow Freeway in [[Greater Cleveland]].<ref>{{Cite encyclopedia |title=Willow Freeway |encyclopedia=[[The Encyclopedia of Cleveland History]] |publisher=[[Case Western Reserve University]] |url=http://ech.case.edu/ech-cgi/article.pl?id=WF1 |url-status=live |date=June 20, 1997 |language=en-US |isbn=0-253-31303-1 |archive-url=https://web.archive.org/web/20100612182225/http://ech.case.edu/ech-cgi/article.pl?id=WF1 |archive-date=June 12, 2010}}</ref>