Interstate 485

From Wikipedia, the free encyclopedia

Current event marker
This article contains information about a planned or expected future road.
It may contain information of a speculative nature and the content may change dramatically as the road's construction and/or completion approaches and more information becomes available.
Interstate 485
Auxiliary route of the Interstate Highway System
Length: 46 mi (74 km)
Formed: 2001
West end: NC 27 in Charlotte
Major
junctions:
I-77 in Charlotte,
NC 51 in Pineville
US 521 in Pineville
US 74 in Matthews
NC 49 in Charlotte
US 29 in Charlotte
East end: I-85 in Charlotte,
North Carolina highways
< NC 481 US 501 >
For two unbuilt highways, see Interstate 485 (Georgia).

Interstate 485 (abbreviated I-485) is an Interstate highway and a partially-completed beltway around Charlotte, North Carolina. It is one of the newest members of the Interstate 85 family.

The western, southern and eastern segments of the beltway are complete and open to traffic. This leg runs south from NC 27 (Mount Holly Road), crosses I-85 near Charlotte/Douglas International Airport and continues counter-clockwise to I-85 near Concord and UNC Charlotte, crossing I-77 south of Uptown Charlotte. During rush hour, this newly-opened roadway is an easy, but long, way around the I-77/I-85 interchange in north Charlotte.

The northwest segment from I-85 to I-77 is currently under construction and being opened in phases. The segment from I-85 to NC 27 opened December 15, 2006. A segment from NC 27 to NC 16 is scheduled to open in mid-2007, and from NC 16 to NC 115, just beyond the I-77 interchange, in late 2007. Construction on the final segment—the northeast section from I-77 to I-85 near UNC Charlotte, is scheduled to begin in 2013.[1]

Although I-485 is officially called the Charlotte Beltway, and unofficially the "Outerbelt", it also goes by two other names. One half is the Governor James G. Martin Freeway and the other half is the Rusty Goode Freeway, in honor of the men who helped make I-485 a reality. Seddon "Rusty" Goode served on the transportation board in Mecklenburg County, North Carolina.

Although part of the Southern Outerbelt runs within 1.5 miles (2.4km) of South Carolina, the entire Outerbelt is located in Mecklenburg County and never crosses into South Carolina or neighboring counties. It should be noted, however that I-485 does come within just 20 feet of the Cabarrus County line at the Rocky River Road exit. The Outerbelt traverses the towns of Mint Hill, Matthews and Pineville; when completed, it will also pass through Huntersville. This will be the first "true" loop road around Charlotte, as the I-277 freeway is an inner loop around downtown Charlotte, locally known as "Uptown" or "Center City."

Contents

[edit] Orientation and signage

Since Interstate 485, when completed, will be a beltway, the compass orientation of the freeway is not uniform around the loop. Some sections of the loop are signed North/South and others are signed East/West, depending on the general compass directions along which traffic flows. In addition to the compass directions, the Inner/Outer labeling system is also utilized, but as of December 2006, it is secondary. 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.[2] 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. Althouth "east" and "west" signs exist, these will be phased out in favor of "inner" and "outer" designations.[3]

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.[4] This system can be confusing, but it is logical; since traffic in the United States generally travels on the right side of the road, the clockwise traveling lanes will always be the "Inner" lanes of a loop.[2]

[edit] Volume, capacity, and improvements

As of 2005, approximately 24 miles of I-485 between NC51 (Exit 65) and NC24-27 (Exit 41), has four travel lanes. Volume on this section varies widely from a maximum of 124,000 vpd east of NC51 to a 40,000 vpd south of NC24.

Approximately 10 miles of I-485 between NC24-27 (Exit 41) and I-85 (Exit 31) has between six and eight travel lanes. Volume on this section varies between 42,000 vpd and 49,000 vpd.

Approximately 10 miles of I-485 between I-77 (Exit 67) and I-85 (Exit 10) has between six and eight travel lanes. Volume on this section varies between 40,000 and 70,000 vpd.

Volume on the southern section of I-485 regularly exceeds capacity during peak travel times, particularly between I-77 (Exit 67) and NC16 (Exit 57). Many of the interchanges in this area were designed to accommodate large volumes of traffic, particular the massive interchange with I-77. However, with only two travel lanes in each direction, I-485 does a poor job of handling through traffic when volume is heavy.

The North Carolina Department of Transportation has proposed to build additional travel lanes along the southern section of I-485 between I-77 and US521. Construction is currently scheduled to begin in 2011.

In addition, NCDOT is planning to convert the existing grade separation at Weddington Road (located between Exit 57 and Exit 52) to an interchange beginning in 2009. The proposed design is a folded-diamond style interchange with all four ramps located to one side of the existing grade separation, similar to the existing interchange of I-485 & NC24-27. The westbound (inner) ramps are proposed to intersect Weddington Road directly opposite Plantation Drive. The future interchange will likely be designated Exit 54.

[edit] Exit list

Mile numbering on Interstate 485 is awkward, as the numbers are set up for when the freeway is a completed loop. Numbering begins at Interstate 77 south of Charlotte, NC and continues clockwise to NC 27 (Mount Holly Road) on the west side of Charlotte. The road ends there for now. The interstate begins at Interstate 85 east of Charlotte, and continues as if the road had not ended, at mile 31 (in reality, a 17-mile gap exists between the two exits), and continues to Interstate 77 at mile 67.

All of the currently open highway is in Mecklenburg County.

# Destinations Notes
1 NC 49 (S.Tryon Street/ York Road)
3 Arrowood Road
4 Steele Creek Road
9 US 29/US 74 (Wilkinson Blvd.)
10A-B Interstate 85
12 Moores Chapel Rd
14 NC 27 (Mount Holly Rd) All traffic exit
Current end of roadway
16 NC 16 (Brookshire Blvd) Under construction; scheduled for completion in 2007[1]
18 Oakdale Rd
21 Vance Rd/W.T. Harris Blvd
23A-B Interstate 77
23C NC 115 (Old Statesville Rd)
Roadway resumes
31 Interstate 85
32 US 29 (N. Tryon Street/Salisbury Road)
33 NC 49 (University City Blvd)
36 Rocky River Road
39 Harrisburg Road
41 NC 24/NC 27 (Albemarle Road)
43 NC 51 (Blair Road)
44 NC 218 (Fairview Road)
47 Lawyers Road
49 Idlewild Road
51A-B US 74 (East Independence Blvd.)
52 East John Street
57 NC 16 (Providence Road)
59 Rea Road
61
US 521 South (Johnston Road)
Split into 61A (US 521 South) and 61B westbound (clockwise). After its recent truncation, northern terminus of US 521
64A-B NC 51 (Pineville-Matthews Road)
65 South Blvd./Pineville Road Split into 65B and 65A eastbound (counterclockwise)
67 Interstate 77/US 21

[edit] References

Auxiliary routes of Interstate 85
Current and Future (F) Former
I-185 Georgia - South Carolina
I-285 Georgia - North Carolina (F)
I-385 South Carolina
I-485 North Carolina Georgia
I-585 South Carolina
I-785 North Carolina-Virginia (F)
I-985 Georgia