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Interstate 485

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This article is about the freeway in North Carolina. For the decommissioned highway in the US state of Georgia, see Interstate 485 (Georgia).

Interstate 485 marker
Interstate 485
Charlotte Outerbelt
Map
I-485 highlighted in red
Route information
Auxiliary route of I-85
Maintained by NCDOT
Length66.68 mi[1] (107.31 km)
Existed1990–present
NHSEntire route
Major junctions
Beltway around Charlotte
Major intersections
Location
CountryUnited States
StateNorth Carolina
CountiesMecklenburg
Highway system
← NC 481→ US 501

Interstate 485 (I-485), also known as the Charlotte Outerbelt, is a 66.68-mile-long (107.31 km) auxiliary Interstate Highway encircling Charlotte, North Carolina. As a complete loop, it is primarily signed with "inner" and "outer" designations, though at some major interchanges, supplemental signage reflects the local compass orientation of the road. The entire route lies within Mecklenburg County.

A beltway for the Charlotte metropolitan area was first proposed in the mid-1970s, with the first section opening in 1990. The beltway was completed in stages over the next several decades, including the completion of the last segment of the highway on June 5, 2015.[2]

Route description

[edit]

All of I-485 is part of the National Highway System, a network of roads important for the nation's defense, economy, and mobility.[3][4] Most of I-485 ranges from four to eight lanes wide, and the speed limit for the entire loop is 70 mph (110 km/h).[5]

Western half

[edit]

The mileage begins at I-77/US 21 in southern Charlotte, near the South Carolina state line. The southwestern segment of I-485 from here to I-85 is known as the Seddon "Rusty" Goode Jr. Freeway.[6] Proceeding through, I-485 crosses I-77/US 21 on a pair of bridges connecting I-485 to I-77, and vice versa.[7] Past the bridges, the terrain of the Interstate transitions from asphalt to concrete. Crossing Coffey Creek, a branch of Sugar Creek, I-485 passes through generally suburban development with trees lining the sides of the road. Shortly after, it meets NC 49 (South Tryon Street), one of the primary thoroughfares through Charlotte.[8] The Interstate gradually makes a slight curve to the north and meets an interchange with Arrowood Road, another one of Charlotte's main streets, with a Topgolf restaurant seen to the side. I-485 then curves left again and intersects NC 160 (Steele Creek Road), providing access to Charlotte Premium Outlets.[9] Yet again, I-485 turns entirely north, exiting the suburban areas and entering some rural development. Crossing over the Piedmont rail line of Amtrak and a small stream, I-485 intersects with US 29/US 74 (Wilkinson Boulevard), allowing entrance to the main terminal of Charlotte Douglas International Airport. At that same moment, I-485 immediately meets I-85 at a stack interchange. The lanes from I-485 to southbound I-85 are often congested due to them merging into one.[10]

I-485 outbound at the I-85/US 29/US 74 interchange

North of the I-85 interchange, the naming of I-485 changes to the Craig Lawing Freeway, named after W. Craig Lawing, the former senator and politician of North Carolina.[11] I-485 passes through more rural areas and just west of a wildlife refuge and lake. I-485 then intersects a roundabout interchange with Moores Chapel Road, allowing drivers to reach the U.S. National Whitewater Center.[12] The Interstate next meets NC 27 at a partial cloverleaf interchange for Mount Holly, then crosses the Long Creek, a tributary of the Catawba River.[13] I-485 continues through forested land and near a dog park before utilizing another partial cloverleaf interchange with NC 16 (Brookshire Boulevard) for Newton at milemarker 16. The interchange as of 2018 has been undergoing a feasibility study that would help improve traffic flow to I-485 and widen the northbound lanes on NC 16.[14][15] I-485 then makes a gradual turn northeast, meeting another roundabout interchange with Oakdale Road, opened in 2017.[16]

Continuing through forest yet again, I-485 turns even further to the east and crosses the Long Creek two more times, then enters suburban areas and meets the western terminus of NC 24 (Harris Boulevard) at an interchange with a single cloverleaf, where drivers on NC 24 can access Northlake Mall.[17] I-485 then turns slightly northeast, entering Huntersville, and crosses another small stream before making another curve back east, intersecting with I-77 again at a large interchange composed of partial cloverleaf and turbine interchange ramps. The segment of I-485 from here to I-85 is the latest segment of the Interstate, completed in 2015.[18]

I-485 inbound approaching exit 23C

I-485 also picks up the name H. Allen Tate Jr. Highway, named after Allen Tate, the founder of Allen Tate Realtors.[19][20] It immediately has a partial cloverleaf for NC 115 at exit 23C, which is proposed to undergo widening from I-485 to NC 24.[21] The Interstate also passes above US 21 without direct access and then intersects a unique roundabout interchange with Benfield Road, Prosperity Church Road, and Prosperity Ridge Road; these three roads are all accessed via Robert Helms Road going inbound and Craven Thomas Road outbound respectively.[22] I-485 then turns a bit southeast and reaches a diverging diamond interchange with Mallard Creek Road, another one of Charlotte's main roads.[22] It turns even more in a southeast direction and reaches a turbine interchange with I-85 once more.[23]

Eastern half

[edit]
I-485 outbound at exit 33 for NC 49

From the I-85 interchange, I-485 becomes the Governor James G. Martin Freeway, named after the former governor of North Carolina.[24] The terrain of I-485 becomes a mixture of concrete and asphalt, and the Interstate passes through somewhat suburban areas, intersecting US 29 (North Tryon Street) a second time, providing access to Concord Mills and Charlotte Motor Speedway.[25] I-485 then meets NC 49 (University City Boulevard) at a partial cloverleaf interchange also a mile later for the University of North Carolina at Charlotte. It passes underneath Lynx Blue Line and crosses the Back Creek as it yet again enters rural areas, going over the Reedy Creek and paralleling, later crossing the McKee Creek, both of them being tributaries of the Rocky River.[26][27]

From here, the terrain is entirely asphalt. I-485 then meets NC 24/NC 27 (Albemarle Road) a second time at a partial cloverleaf interchange.[28] The Interstate intersects with NC 51 (Blair Road) a mile later near the town of Mint Hill. It turns entirely due south, then intersects NC 218 a mile after that by crossing the Clear Creek. Passing Idlewild Road, which underwent construction numerous times,[29] I-485 turns southwest, and utilizes another partial cloverleaf interchange with US 74. The interchange ramps were closed as part of a project to build express lanes along I-485 on August 1, 2023.[30]

I-485 inbound at the interchange with I-77 south of Charlotte

Several miles later, I-485 has a partial cloverleaf interchange with NC 16 (Providence Road) again, just outside the Ballantyne neighborhood, where it travels entirely in a westward direction. It then enters suburban areas and receives the northern terminus of US 521 (Johnston Road) at milemarker 61. The express lanes in the future will connect Johnston Road directly to I-485, and vice versa.[31] I-485 then turns a little northwest, crossing McAlpine Creek, another tributary of the Catawba River[32] before turning in a north direction and intersecting NC 51 (Pineville-Matthews Road) at a partial cloverleaf interchange. A mile later, I-485 passes just south of the I-485/South Boulevard park and ride located off of South Boulevard at milemarker 65, as well as access to the President James K. Polk Historic Site.[33][34] I-485 then continues northwest, crossing Sugar Creek, before reaching I-77/US 21 at a stack interchange, completing the beltway and resetting the mileage.[35]

Orientation and signage

[edit]
I-485 outbound near Matthews. Due to traffic traveling on the right side of the road in a counterclockwise direction, it is considered the "outer" portion of the loop.

Since I-485 is a beltway, the compass orientation of the freeway is not uniform around the loop. To remedy the uniformity issue, the inner–outer orientation system was implemented and became the primary method of signing the direction of travel around the loop. Some sections of the loop are signed with additional north–south or east/west labels (depending on the general direction of travel along a particular stretch) to aid drivers familiar with compass directions. Usually when both systems are utilized on signs, the compass directional banner is placed above the number shield and the inner/outer banner is placed below.[36] Officials originally decided to use only "north" and "south" compass directions when signing the route, but, because this would be confusing with multiple "norths" and "souths", "inner" and "outer" designations were included. Although "east" and "west" signs exist, these were phased out in favor of "inner" and "outer" designations.[37]

Traffic traveling in a clockwise direction around the city of Charlotte is on the "Inner" loop and traffic traveling in a counterclockwise direction is on the "Outer" loop. This system can be confusing, but it is logical; since traffic in the US generally travels on the right side of the road, the clockwise traveling lanes will always be the "Inner" lanes of a loop.[38]

There are three control cities along the route: Huntersville, Matthews, and Pineville. Secondary control cities, which include Spartanburg, Statesville, Greensboro, and Columbia, are also listed at various interchanges for travelers that want to bypass Charlotte to other destinations, via I-77 and I-85.

Dedicated and memorial names

[edit]

I-485 in North Carolina is split into four dedicated or memorialized stretches of freeway:

  • Seddon "Rusty" Goode Freeway: The official name of the southwest section, from milemarkers 0 to 10. Seddon Goode served on the transportation board in Mecklenburg County and helped bring I-485 as a reality. It was approved on March 7, 1997.[39]
  • Craig Lawing Freeway: The official name of the northwest section, named for W. Craig Lawing from milemarkers 10 to 23 that was approved on February 2, 2001.[39]
  • H. Allen Tate Jr. Highway: The official name of the northeast section, from milemarkers 23 to 31. It was named after the founder of Allen Tate Realtors and was dedicated on March 27, 2015.[40][41]
    • Doctor Jay M. Robinson Freeway: It was the official name of the northeast section, from 2001 to 2015 and named after a former superintendent of the Charlotte-Mecklenburg Schools system.[39] Approved on January 5, 2001, it was never signed; when this section was finally constructed in 2015, it was redesignated to honor H. Allen Tate Jr.[40][42]
  • Governor James G. Martin Freeway: The official name of the southeast section, from milemarkers 31 to 67. It was named in honor of Governor James G. Martin who served North Carolina from 1985 to 1993 and was approved on December 4, 1993.[39]

History

[edit]
NC 24 ends at I-485, in Charlotte

The first section of what became I-485 was completed around 1967, connecting a newly opened section of I-85 with US 29 near the Cabarrus–Mecklenburg county line.[43][44] This section became a part of I-485 on May 5, 1999, the first section of the highway on the north end of the county.[45]

In 1975, planning began for the Charlotte outerbelt.[46]

On July 8, 1988, Governor James G. Martin and state transportation secretary Seddon Goode attended a groundbreaking near US 521, marking the start of construction on the first 1.3-mile (2.1 km) section between US 521 and North Carolina Highway 51 (NC 51). Martin also announced the designation "Interstate 485" for what had previously been called the outerbelt.[47] The section opened November 1, 1990, two months earlier than planned.[48]

A $67.2-million (equivalent to $125 million in 2023[49]) 2.6-mile (4.2 km) section of I-485 from US 521 to I-77 was opened on October 24, 1994. This section included a four-level interchange, the first and only in North Carolina, at its junction with I-77.[50] On December 9, 1994, the section from NC 51 to Rea Road was opened.[51]

On July 1, 1997, a $13.9-million (equivalent to $24.5 million in 2023[49]) two-mile (3.2 km) section of I-485 was opened between I-77 and NC 49, a section designated the Seddon "Rusty" Goode Jr. Freeway, named for a member of the North Carolina Board of Transportation who helped decide where I-485 would be built.[52]

On August 15, 1997, 2.3 miles (3.7 km) of I-485 were opened between Rea Road and NC 16 (Providence Road).[53] An $8.6-million (equivalent to $15.2 million in 2023[49]) 1.4-mile (2.3 km) section from NC 49 to Brown-Grier Road in the Steele Creek community was opened in two stages in August 26 and 27; the name of Brown-Grier Road was changed to Arrowood Road when that road was extended.[54] Seven more miles (11 km) were opened on September 15, connecting NC 16 to US 74.[55]

In May 1999, the original segment between I-85 and US 29 (North Tryon Street) was widened and rebuilt to Interstate standards, officially becoming part of I-485; a few months later, on August 13, the segment was extended to NC 49 (University City Boulevard).[56][45][57] In December 1999, the main section of I-485 continued its extension north from US 74 to Idlewild Road, adding 2.3 miles (3.7 km). In June 2000, another three-mile (4.8 km) extension was completed, between Idlewild Road and Lawyers Road in Mint Hill, at a cost of $10.2 million (equivalent to $17.2 million in 2023[49]).[58]

In 2003, the last 12.5 miles (20.1 km) needed to link main I-485 to its northern stub were completed, at a cost of $55.4 million (equivalent to $88 million in 2023[49]). Opening in two phases, the first 7.5-mile (12.1 km) segment was opened on September 3, 2003, between University City Boulevard and NC 27 (Albemarle Road). Two months later, the second five-mile (8.0 km) segment was opened on November 19, between Albemarle Road and Lawyers Road.[59][46]

On October 19, 2004, I-485 was widened, from four to six lanes between I-77/US 21 and Arrowood Road, and extended between Arrowood Road and I-85 (near Belmont). Completion of the $100-million (equivalent to $155 million in 2023[49]) seven-mile (11 km) segment was noted that it would relieve traffic along the Billy Graham Parkway and provide an alternative route to Charlotte Douglas International Airport.[60] On December 15, 2006, a 2.3-mile (3.7 km) segment between I-85 (near Belmont) and NC 27 (Mount Holly Road) was opened. Signed as Future I-485, it was also dedicated as the Craig Lawing Freeway.[61] Six months later, on May 9, 2007, another 1.5-mile (2.4 km) segment, between Mount Holly Road and NC 16 (Brookshire Boulevard) was opened.[62] On December 4, 2008, a 5.5-mile (8.9 km) segment between Brookshire Boulevard and NC 115 (Old Statesville Road) was opened; all future signage was removed from the previous segments, with new signage showing connection between I-77, toward Statesville, and I-85, toward Spartanburg.[63] In 2011, the West Boulevard interchange (exit 6) was opened to traffic, existing previously as a graded future interchange since 2004.[64]

The final segment, from I-77 to I-85 near the UNC Charlotte, had begun the right-of-way acquisition phase with contracts awarded in June 2010. The segment was opened to traffic on June 5, 2015, finally completing the loop and providing a direct connection from I-77 near Huntersville to I-85 near Concord Mills.[65][66]

Since 2003, the North Carolina Department of Transportation (NCDOT) has made sure that future segments of I-485 were designed with a minimum of six travel lanes. While the first segments of I-485 were already choked by traffic due to Charlotte's rapid growth, NCDOT could not immediately deal with the issue thanks to a 2000 policy that prevented the state using trust fund money, a major source of funding for new projects, to widen existing roads.[67] Eventually, NCDOT was able to allocate new funds for a widening project, between US 521 (Johnston Road) and I-77/US 21, which was slated for construction in 2012.[68] On November 18, 2011, NCDOT changed the plans with an extension of the widening project to Rea Road and additional space allocated for a future toll lane, between Johnston Road and I-77/US 21.[69] Construction on the modified widening project began in 2013. At a cost of $83.3 million (equivalent to $105 million in 2023[49]), the 9.2-mile (14.8 km) widening project was completed in December 2015.[70]

On January 15, 2017, the Oakdale Road interchange (exit 18) was opened to traffic, existing previously as a graded future interchange since 2008.[71]

Future

[edit]

Since November 18, 2011, NCDOT has made plans for future toll lanes along I-485. Modifying an already planned widening project between US 521 (Johnston Road) and I-77/US 21, it called on a future toll lane to be constructed as well as extending the widening project towards Rea Road. The future toll lanes, when completed would be between US 74 (Independence Boulevard) and I-77/US 21;[72] in April 2014, the Charlotte Regional Transportation Planning Organization (CRTPO) adopted the 2040 Metropolitan Transportation Plan (MTP), which included establishing toll lanes along I-485.[73] The first segment of the new toll lanes, between Johnston Road and I-77/US 21, were completed in December 2015 but were not opened.[68][69] The new unopen lanes along I-485 became controversial and discussions were made about making it a high-occupancy vehicle lane (HOV lane), or at least temporally; however, local and state officials said that could not be done and would cost more for just temporary use of the lanes.[74][75]

At a cost of $202.9 million, the 16.6-mile (26.7 km) I-485 Express Lanes project will establish new toll lanes along its entire planned route. It will also include the following improvements: adding additional general purpose lanes between Providence Road and Rea Road, extending auxiliary lanes between Independence Boulevard and East John Street, establishing dedicated connectors from the Express Lanes to Johnston Road (eastbound only) and Westinghouse Boulevard (westbound only), and incorporating the existing planned project of adding a new interchange at Weddington Road. Tolls would be collected using an electronic toll collection (ETC) system; drivers will need to have the NC Quick Pass, or other interoperable transponder, or will be billed by mail with a higher rate. Construction began "tentatively" in mid-2018, and is currently still going on as of 2024.[73][76][77]

Exit list

[edit]

Milemarker numbering along the loop freeway goes in a clockwise direction, beginning and ending at the interchange with I-77/US 21 in southern Charlotte.

The entire route is in Mecklenburg County.

Locationmi[78]kmExitDestinationsNotes
Charlotte1.62.61 NC 49 (South Tryon Street)
3.04.83Arrowood Road
4.47.14 NC 160 (Steele Creek Road) – Fort MillPartial cloverleaf interchange
​6.09.76West Boulevard
​9.415.19 US 29 / US 74 (Wilkinson Boulevard) – CLT AirportExit is part of exit 10 southbound
​10.016.110 I-85 – Greensboro, SpartanburgSigned as exits 10A (north) and 10B (south) on exit collector lanes; stack interchange
Charlotte11.819.012Moores Chapel RoadDouble roundabout interchange
13.020.914 NC 27 (Mount Holly Road)
15.424.816 NC 16 (Brookshire Boulevard) – NewtonPartial cloverleaf interchange
17.227.718Oakdale Road
20.332.721
 NC 24 east (Harris Boulevard)		Partial cloverleaf interchange; to Northlake Mall
Huntersville22.035.423 I-77 – Charlotte, StatesvilleSigned as exits 23A (south) and 23B (north) outbound
23.037.023C NC 115 (Old Statesville Road)
Charlotte25.440.926Prosperity Ridge Road / Prosperity Church Road / Benfield RoadDouble roundabout interchange
27.544.328Mallard Creek RoadDiverging diamond interchange
28.445.730 I-85 – Spartanburg, GreensboroTurbine interchange
30.649.232 US 29 (North Tryon Street) – Charlotte, ConcordPartial cloverleaf interchange; to Charlotte Motor Speedway
32.251.833 NC 49 (University City Boulevard) – HarrisburgTo UNC Charlotte
​34.755.836Rocky River Road
​37.560.439Harrisburg Road
Mint Hill38.461.841 NC 24 / NC 27 (Albemarle Road) – Albemarle
40.465.043 NC 51 (Blair Road) – Mint Hill
42.267.944 NC 218 (Fairview Road) – Mint Hill
44.171.047Lawyers Road
Matthews46.374.549Idlewild Road
47.175.851 US 74 (Independence Boulevard) – Charlotte, MonroeSigned as exits 51A (west) and 51B (east)
— I-485 inner (Express Lanes)Future terminus of I-485 Express lanes
50.481.152East John Street – Matthews, Stallings, Indian Trail
54Weddington RoadFuture interchange (funded, scheduled to begin construction in 2020)[79]
Charlotte54.187.157 NC 16 (Providence Road) – WeddingtonPartial cloverleaf interchange
56.290.459Rea RoadPartial cloverleaf interchange
59.495.661
 US 521 south (Johnston Road)		Signed as exits 61A (north) and 61B (south) inbound; to Ballantyne; northern terminus of US 521
—Future interchange; outbound exit and inbound entrance, express lanes only
Pineville61.498.864 NC 51 (Pineville-Matthews Road) – Pineville, MatthewsSigned as exits 64A (north) and 64B (south); partial cloverleaf interchange; to Carolina Place Mall
64.2103.365South Boulevard / North Polk Street – PinevilleSigned as exits 65A (south) and 65B (north) southbound; partial cloverleaf interchange; former US 521 north
Charlotte—Westinghouse BoulevardFuture interchange; express lanes only
67.6108.8— I-485 outer (Express Lanes)Future terminus of I-485 Express lanes
67

 I-77 / US 21 to I-85 north – Charlotte, Columbia		Stack interchange; I-85 signed inbound
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Unopened

See also

[edit]

References

[edit]
  1. ^ Starks, Edward (January 27, 2022). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved August 29, 2022.
  2. ^ "NCDOT Announces Opening Date for Final Segment of I-485" (Press release). North Carolina Department of Transportation. May 13, 2015. Archived from the original on July 22, 2015. Retrieved May 14, 2015.
  3. ^ Federal Highway Administration (March 25, 2015). National Highway System: North Carolina (PDF) (Map). Raleigh: Federal Highway Administration. Archived (PDF) from the original on September 22, 2015. Retrieved April 6, 2016.
  4. ^ "What is the National Highway System?". National Highway System. Federal Highway Administration. February 26, 2016. Archived from the original on September 24, 2012. Retrieved April 6, 2016.
  5. ^ "NCDOT Implementing 70 MPH Speed Limit on I-485 Outer Loop" (Press release). North Carolina Department of Transportation. May 14, 2015. Archived from the original on May 28, 2015. Retrieved May 14, 2015.
  6. ^ North Carolina Department of Transportation (March 7, 1997). "Resolution for Seddon "Rusty" Goode Jr" (PDF). North Carolina Department of Transportation. Retrieved May 13, 2024.
  7. ^ University of North Carolina at Charlotte (July 21, 1999). "I-485 Interchange Analysis" (PDF). Mecklenburg-Union Metropolitan Planning Organization. Retrieved May 13, 2024.
  8. ^ North Carolina Department of Transportation (May 13, 2024). "NC 49 Improvements" (PDF). North Carolina Department of Transportation. Retrieved May 13, 2024.
  9. ^ "Charlotte Premium Outlets". Design Resource Group. Retrieved May 13, 2024.
  10. ^ "NCDOT: I-85/I-485 Interchange Improvements, West of Charlotte". North Carolina Department of Transportation. Retrieved April 4, 2024.
  11. ^ North Carolina Department of Transportation (February 8, 2001). "Resolution for W. Craig Lawing" (PDF). North Carolina Department of Transportation. Retrieved May 13, 2024.
  12. ^ S2O Design (May 13, 2024). "Case Study: The U.S. National Whitewater Center" (PDF). S2O Design. Retrieved May 13, 2024.{{cite web}}: CS1 maint: numeric names: authors list (link)
  13. ^ "nc_longcr_profile.pdf". docs.google.com. Retrieved May 13, 2024.
  14. ^ "Proposed Project Would Improve I-485/N.C. 16 Interchange in Mecklenburg Co". NCDOT. Retrieved May 13, 2024.
  15. ^ University of North Carolina at Charlotte (January 28, 2002). "Brookshire Boulevard/I-485 Area Plan" (PDF). Charlotte-Mecklenburg Planning Commission. Retrieved May 13, 2024.
  16. ^ "Oakdale/I-485 interchange open for drivers ahead of Tuesday commute". WBTV. January 17, 2017. Retrieved May 13, 2024.
  17. ^ University of North Carolina at Charlotte (May 13, 2024). "Northlake Plan" (PDF). Charlotte-Mecklenburg Planning Department. Retrieved May 13, 2024.
  18. ^ "Final segment of Interstate 485 opens around Charlotte". Gaston Gazette. Retrieved May 13, 2024.
  19. ^ "Allen Tate, founder of real estate company, dies at age 84". WSOC TV. June 22, 2015. Retrieved May 13, 2024.
  20. ^ North Carolina Department of Transportation (January 8, 2015). "Resolution for H. Allen Tate, Jr" (PDF). North Carolina Department of Transportation. Retrieved May 13, 2024.
  21. ^ "Widening of N.C. 115 (Old Statesville Road)". NCDOT. Retrieved May 13, 2024.
  22. ^ a b Staff, The Charlotte Observer (June 1, 2015). "Last I-485 segment will be boon to locals". WBTV. Retrieved May 13, 2024.
  23. ^ Thompson, Jen (May 13, 2024). "North Carolina Steps Boldly Out of Its Comfort Zone". Federal Highway Administration. Retrieved May 13, 2024.
  24. ^ North Carolina Department of Transportation (December 4, 1992). "Resolution for James G. Martin" (PDF). North Carolina Department of Transportation. Retrieved May 13, 2024.
  25. ^ Charlotte Motor Speedway (May 14, 2024). "Speedway Map" (PDF). Charlotte Motor Speedway. Retrieved May 14, 2024.
  26. ^ "Reedy Creek Below I-485 NR Pine Ridge, NC". waterdata.usgs.gov. Retrieved May 13, 2024.
  27. ^ Greenville News. "I485 over MCKEE CREEK Mecklenburg County, North Carolina Bridge Inspection Report". Greenville News. Retrieved May 13, 2024.
  28. ^ University of North Carolina at Charlotte (February 10, 2003). "Albemarle Road/I-485 Interchange Study" (PDF). Charlotte-Mecklenburg Planning Commission. Retrieved May 13, 2024.
  29. ^ "NCDOT: U.S. 74 Express Lanes: West of Idlewild Road to I-485 - Project History". NCDOT. Retrieved May 13, 2024.
  30. ^ "Ramp Closures Continue on I-485 Project". NCDOT. Retrieved May 13, 2024.
  31. ^ North Carolina Department of Transportation (May 13, 2024). "Proposed Johnston Road Direct Connector" (PDF). North Carolina Department of Transportation. Retrieved May 13, 2024.
  32. ^ University of North Carolina at Charlotte (March 28, 2002). "McAlpine Creek Watershed" (PDF). Charlotte-Mecklenburg Storm Water Services. Retrieved May 13, 2024.
  33. ^ "LYNX Stations". www.charlottenc.gov. Retrieved May 14, 2024.
  34. ^ Pineville (March 2021). "Comprehensive Plan" (PDF). Pineville. Retrieved May 13, 2024.
  35. ^ University of North Carolina at Charlotte (July 21, 1999). "I-485 Interchange Analysis" (PDF). Mecklenburg-Union Planning Organization. Retrieved May 13, 2024.
  36. ^ "I-485 Outer / Wilkinson Blvd sign picture". www.interstate-guide.com. Archived from the original on June 29, 2007. Retrieved August 29, 2022.
  37. ^ Slade, Jim (March 12, 2024). "I-485 Inner And Outer Loop — An Explainer". Country 103.7. Retrieved May 13, 2024.
  38. ^ "State has new way to identify location on I-485". Charlotte, NC: WSOC-TV. March 7, 2005. Archived from the original on November 11, 2006. Retrieved December 1, 2006.
  39. ^ a b c d "North Carolina Memorial Highways and other Named Facilities" (PDF). North Carolina Department of Transportation. Archived from the original (PDF) on December 29, 2012. Retrieved March 27, 2015.
  40. ^ a b Sorensen, Andrew (March 27, 2015). "Final Section of I-485 Officially Named After H. Allen Tate, Jr". Charlotte, NC: Time Warner Cable News. Archived from the original on April 2, 2015. Retrieved March 27, 2015.
  41. ^ "Final Segment of I-485 Named for Entrepreneur and Longtime Transportation Advocate Allen Tate" (Press release). North Carolina Department of Transportation. March 27, 2015. Archived from the original on April 2, 2015. Retrieved March 27, 2015.
  42. ^ "Resolution for Doctor Jay M. Robinson" (PDF). North Carolina Department of Transportation. January 5, 2001. Retrieved November 23, 2024.
  43. ^ O'Brien, Gary (August 28, 1996). "Clearing the Way". 'The Charlotte Observer. p. 2M.
  44. ^ Lyttle, Steve (June 1, 2013). "2 Meck bridges among NC's 'substandard". The Charlotte Observer. p. 1B.
  45. ^ a b Whitacre, Dianne (May 6, 1999). "Stretch of Road Part of a Larger Step". The Charlotte Observer. p. 1C.
  46. ^ a b Whitacre, Dianne (November 20, 2003). "I-485 Arc Takes Shape to Bypass Charlotte". The Charlotte Observer. p. 1A.
  47. ^ Curry, Kathleen (July 9, 1988). "Outerbelt Dubbed I-485: Construction on Road Project Officially Under Way". The Charlotte Observer. p. 1B.
  48. ^ Whitacre, Dianne (November 11, 1990). "I-485's Opening Unclogs Traffic at Intersection, Not in Heart of Pineville". The Charlotte Observer. p. 4 (Mecklenburg Neighbors).
  49. ^ a b c d e f g 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.
  50. ^ Norwood, Allen (October 25, 1994). "Open for Business: Ribbon Cut on Newest I-485 Section". The Charlotte Observer. p. 1A.
  51. ^ Norwood, Allen (December 2, 1994). "Bracing As the Outerbelt Advances". The Charlotte Observer. p. 1B.
  52. ^ Whitacre, Dianne (July 2, 1997). "Charlotte's Outerbelt Adds Link to NC 49". The Charlotte Observer. p. 2C.
  53. ^ Horan, Jack & LaPolla, Joie (August 15, 1997). "A Welcome Link: New Section of Outerbelt a Big Deal for Union County". The Charlotte Observer. p. 1C.
  54. ^ Whitacre, Dianne (August 28, 1998). "1.4-Mile Stretch of I-485 Opens from NC 49 to Steele Creek". The Charlotte Observer. p. 1C.
  55. ^ Gomlak, Norman; LaPolla, Joie (September 14, 1997). "New I-485 Link: Life in the Faster Lane". The Charlotte Observer. p. 4U.
  56. ^ Whitacre, Dianne (August 13, 1999). "I-485 Leg Opens Today, But Will Traffic Come?". The Charlotte Observer. p. 5C.
  57. ^ Whitacre, Dianne (December 16, 1999). "Filling in the Belt's Gaps". The Charlotte Observer. p. 1C.
  58. ^ Whitacre, Dianne (June 7, 2000). "I-485 Reaches Mint Hill". The Charlotte Observer. p. 1A.
  59. ^ Whitacre, Dianne (September 3, 2003). "Opening Today Adds 7.5 Miles to Eastern I-485". The Charlotte Observer. p. 1B.
  60. ^ Whitacre, Dianne (October 20, 2004). "Outerbelt Section Opens to Cheers, Parade of Cars". The Charlotte Observer. p. 2B.
  61. ^ Rubin, Richard (December 16, 2006). "Outerbelt Giveth, and Taketh Away". The Charlotte Observer. p. 1B.
  62. ^ Song, Jenny (May 10, 2007). "Next Exit: Even More Growth along I-485". The Charlotte Observer.[page needed]
  63. ^ Harrison, Steve (December 3, 2008). "Newest I-485 Section to Open". The Charlotte Observer. p. 1B.
  64. ^ "$1.2 Million Contract Awarded to Complete I-485 Interchange in Mecklenburg County" (Press release). North Carolina Department of Transportation. September 22, 2010. Archived from the original on March 27, 2017. Retrieved March 26, 2017.
  65. ^ "I-485 Charlotte Outer Loop". North Carolina Department of Transportation. Archived from the original on June 21, 2016. Retrieved September 19, 2011.
  66. ^ "Charlotte company awarded contract for I-485 completion". Charlotte, NC: WCNC-TV. June 3, 2010. Archived from the original on March 23, 2012. Retrieved September 19, 2011.
  67. ^ Whitacre, Dianne (May 13, 2003). "Rules Delay Widening Busiest I-485 Stretch". The Charlotte Observer. p. 1A.
  68. ^ a b "Project R-4902". North Carolina Department of Transportation. Archived from the original on January 9, 2012. Retrieved October 31, 2011.
  69. ^ a b "NC considers adding toll lane to I-485". The Charlotte Observer. Retrieved November 18, 2011.[permanent dead link‍]
  70. ^ Penland, Brittany (December 2, 2012). "Ballantyne widening of I-485 starts in new year". The Charlotte Observer. p. 4B.
  71. ^ "Oakdale/I-485 interchange open for drivers ahead of Tuesday commute". Charlotte, NC: WBTV. January 18, 2017. Archived from the original on March 27, 2017. Retrieved March 26, 2017.
  72. ^ Charlotte Region Fast Lanes Study (May 13, 2024). "Phase III Results Summary" (PDF). CRTPO. Retrieved May 13, 2024.
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  74. ^ St. Onge, Peter (January 23, 2015). "An open mind on closed I-485 lane". The Charlotte Observer. Archived from the original on December 1, 2017. Retrieved November 21, 2017.
  75. ^ Harrison, Steve (January 5, 2016). "Vote signals Charlotte City Council support for toll lanes". The Charlotte Observer. Archived from the original on December 1, 2017. Retrieved November 21, 2017.
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  78. ^ "Overview map of I-485 (Western Half)" (Map). Google Maps. Retrieved July 20, 2012.
  79. ^ Sullivan, Karen. "Oakdale Road interchange takes shape on I-485". The Charlotte Observer. Archived from the original on December 12, 2015. Retrieved November 1, 2015.
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