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Interstate 585 South Carolina

 

Routing

One of the more eclectic Interstate spur routes, Interstate 585 is a short spur from Business Loop I-85 east into Spartanburg via U.S. 176. This Interstate does not connect to its parent (Interstate 85); it was orphaned when Interstate 85 was rerouted onto a new bypass of Spartanburg to the northwest of the old route. With this action, Interstate 585 is completely stranded from the rest of the Interstate system, with the only connections via Business Loop I-85 or by following U.S. 176 a mile north of Business Loop Interstate 85 to the new Interstate 85.

Interstate 585 does not use its own exit numbering system; instead, it takes on exit numbers based on the mileposts for U.S. 176, since U.S. 176 is multiplexed throughout the route. Even on its freeway portion, Interstate 585 is substandard with small shoulders.

Continuing into Spartanburg, Interstate 585 continues as a surface boulevard known as Pine Street east of the Exit 25 interchange with U.S. 221/South Carolina 9. South Carolina 9 merges onto the Interstate 585/U.S. 176 overlap along eastbound Pine Street. This section is supposed to be part of the 0.3-mile Business Spur I-585 that extends south from the official southern terminus. However, only one shield of such a route exists, and full blown Interstate reassurance shields have been found on Pine Street east of the freeway portion. The eastbound shield at Spartanburg Regional Medical Center apparently is no longer in place. It is unclear if Interstate 585 shields still remain in other locations between Exit 25 and U.S. 29 along Pine Street.

Interstate 585 is a spur route from Business Loop I-85 and is thus orphaned from its parent, which was relocated to the north.

Future Aspirations

Plans call to extend Interstate 585 as a freeway-grade facility from Business Loop I-85 to Interstate 85, but that will require some upgrades to the expressway portion between the two freeways. It is unclear when this upgrade might occur.

History

Interstate 585 opened as a freeway for U.S. 176 in 1957.1

Highway Guides

Northern Terminus - Business Loop I-85 - Spartanburg, South Carolina
Perspective from Interstate 585 north
Traveling north on Interstate 585 and west on U.S. 176, the penultimate exit is Exit 24, California Avenue. Photo taken by Alex Nitzman (06/22/05).
Northbound Interstate 585 and westbound U.S. 176 reach Exit 24, California Avenue. Note this is a newer reflective sign, as compared to the older button copy sign seen in the previous photo. Photo taken by Alex Nitzman (06/22/05).
The final interchange of Interstate 585 is Exit 23B/A with Business Loop 85. This westbound photograph looks at the 0.75 mile guide sign. There is one more interchange west of here along U.S. 176 at Valley Falls Road. This interchange (Exit 22) will become part of Interstate 585. Photo taken by Alex Nitzman (06/22/05).
Traffic merges onto Interstate 585 north from a nearby frontage road as the freeway approaches the Exit 23 cloverleaf interchange with Business Loop I-85. Photo taken by Alex Nitzman (06/22/05).
Exit 23B for Business Loop I-85 northbound departs to Charlotte. The original Interstate 85 freeway merges with current Interstate 85 in three miles, 29 miles south of the North Carolina state line. Photo taken by Alex Nitzman (06/22/05).
The next exit is Exit 23A, Junction Business Loop I-85/Veterans Parkway southbound. This Business Loop Freeway is one of three full-freeway business loops in the country at the present time. The other two are Business Loop I-80 in Sacramento, California, and Business Loop I-40 in Winston-Salem, North Carolina. Photo taken by Carter Buchanan (10/28/06).
Perspective from U.S. 176 west and Future Interstate 585 north
Without an END shield, Interstate 585 north shifts directly onto U.S. 176 west. The next exit is unnumbered; it connects to East Campus Boulevard. Valley Falls Road is the next exit after East Campus Boulevard. Photo taken by Carter Buchanan (10/28/06).
Perspective from Business Loop I-85 north
Northbound Business Loop 85 at Exit 4/South Carolina 56/Asheville Highway. South Carolina 56 merges with U.S. 176 near Interstate 85 to the north. The southbound beginning of Interstate 585 is one half mile to the north. Photo taken by Chris Patriarca (04/06/03).
Exit 5A departs for Interstate 585 south/U.S. 176 eastbound into Spartanburg. There is no direct access to U.S. 176 westbound as Exit 5B connects with a local surface highway instead. Interstate 585 south sees its first interchange at Exit 24/California Street. In the second photo, note the construction activities at the interchange between Business Loop I-85 and Interstate 585. Photos taken by Chris Patriarca (04/06/03) and Alex Nitzman (06/22/06).
Perspective from Business Loop I-85 south
Southbound Business Loop I-85 at Exit 5B/U.S. 176 west. U.S. 176 is a divided surface highway between Interstate 85 and the Business Loop freeway with an interchange at Valley Falls Road. Photo taken by Chris Patriarca (04/06/03).
The cloverleaf ramp for Interstate 585 south/U.S. 176 east into Spartanburg departs at Exit 5A on Business Loop I-85 south. The original Interstate 85 continues three miles south to a junction with Interstate 26 before ending at Interstate 85's Exit 69. Photo taken by Chris Patriarca (04/06/03).
Perspective from U.S. 176 east and Future Interstate 585 south
U.S. 176 as it descends toward Business Loop I-85 and Interstate 585. This shoulderless stretch of U.S. 176 would need upgrading if it is to become Interstate 585. Photo taken by Chris Patriarca (04/06/03).
Interstate 585 begins as U.S. 176 southbound passes by Exit 23A to Business Loop I-85 south. The first mainline Interstate 585 interchange is with California Street at Exit 24. Photos taken by Chris Patriarca (04/06/03) and Carter Buchanan (10/28/06).
Eastbound U.S. 176 and southbound Interstate 585 connect to northbound Business Loop I-85/Veterans Parkway; the next exit is for California Avenue. Photo taken by Carter Buchanan (10/28/06).
Perspective from Interstate 585 south
The first exit on southbound Interstate 585 and eastbound U.S. 176 is Exit 23, California Avenue. Note construction was underway at the time this picture was taken. Exit numbers are based on the mileage of U.S. 176. Photo taken by Alex Nitzman (06/22/05).
This is the first set of reassurance shields for Interstate 585 south and U.S. 176 east after the Business Loop I-85 interchange. Photo taken by Alex Nitzman (06/22/05).
Future Northern Terminus - Interstate 85 - Spartanburg, South Carolina
Perspective from U.S. 176 west and Future Interstate 585 north
Westbound U.S. 176 and northbound Future Interstate 585 reaches its penultimate offramp at Valley Falls Road. The next exit is the junction with Interstate 85. Photo taken by Carter Buchanan (10/28/06).
The right lane of westbound U.S. 176 and northbound Future Interstate 585 becomes exit only for the connection to northbound Interstate 85 to Charlotte, North Carolina. Note the traffic signals dangling in the distance; these prevent this section of U.S. 176 from being upgraded to Interstate 585. However, plans call for these signals to be removed once high speed connections are constructed between Interstate 85 and U.S. 176, thus reconnecting Interstate 585 back to its parent, Interstate 85. Photo taken by Carter Buchanan (10/28/06).
Westbound U.S. 176 and northbound Future Interstate 585 reaches its connection with Interstate 85 north. A left turn is required to connect to Interstate 85 south. Photo taken by Carter Buchanan (10/28/06).
Perspective from U.S. 176 (Future Interstate 585) south
Upon leaving the interchange with Interstate 85, the first exit on eastbound U.S. 176 and southbound Interstate 585 is for Valley Falls Road. Photo taken by Carter Buchanan (10/28/06).
Eastbound U.S. 176 and southbound Interstate 585 meet Valley Falls Road at this offramp. The next exit connects the freeway to East Campus Boulevard and the University of South Carolina - Upstate. Photo taken by Carter Buchanan (10/28/06).
The next offramp connects eastbound U.S. 176 and southbound Interstate 585 with East Campus Boulevard. The next exit is Junction Business Loop I-85/Veterans Parkway. Photo taken by Carter Buchanan (10/28/06).
Perspective from Interstate 85 north
Although Interstate 585 does not connect to Interstate 85 as an Interstate-grade facility yet, the Exit 72 diamond interchange from Interstate 85 mentions the three-digit spur. This northbound photograph is taken one mile to the south of the North Pine Street interchange. Photo taken by Chris Patriarca (04/06/03).
Passing underneath South Carolina 56/Asheville Highway, the Exit 72 ramp for U.S. 176 east to Interstate 585 departs. The next northbound interchange is with South Carolina 9 in three miles. South Carolina 9 also has an interchange with Business Loop I-85 and a brief overlap with Business Spur I-585. Photo taken by Chris Patriarca (04/06/03).
Next Three Interstate Junctions for Interstate 85 north
Interstate 485
future
64 miles west of Charlotte, NC
Interstate 77 72 miles at Charlotte, NC
Interstate 485 82 miles east of Charlotte, NC
Perspective from Interstate 85 south
One mile north of U.S. 176/Exit 72 on Interstate 85 southbound. The divided highway links Inman and Interstate 26 with downtown Spartanburg via South Carolina 56 or Interstate 585. Photo taken by Chris Patriarca (04/06/03).
Interstate 85 southbound at Exit 72/U.S. 176 to Interstate 585. The next interchange (Exit 70) is with Interstate 26 in 1.50 miles. Otherwise Interstate 85 travels 26 miles to the largest metropolitan area of South Carolina, Greenville. Photo taken by Chris Patriarca (04/06/03).
Next Three Interstate Junctions for Interstate 85 south
Interstate 26 2 miles at Spartanburg, SC
Interstate 385 21 miles at Maulden, SC
Interstate 185 302 miles at Greenville, SC
Southern Terminus - McCravy Drive or U.S. 29/St. John Street - Spartanburg, South Carolina
Perspective from Interstate 585 south
The only interchange on southbound Interstate 585 and U.S. 176 is Exit 25B, Junction U.S. 221/Whitney Road to South Carolina 9/Church Street. Photos taken by Alex Nitzman (06/22/05) and Carter Buchanan (10/28/06).
The speed limit drops to 40 miles per hour and the right shoulder ends as Interstate 585 south and U.S. 176 east approach Exit 25B, Junction U.S. 221/Whitney Road to South Carolina 9/Church Street. Photo taken by Alex Nitzman (06/22/05).
Southbound Interstate 585 and U.S. 176 reach Exit 25B, Junction U.S. 221/Whitney Road to South Carolina 9/Church Street. Photos taken by Alex Nitzman (06/22/05) and Carter Buchanan (10/28/06).
Interstate 585 eastbound draws to a close as U.S. 176 and South Carolina 9 continue toward downtown Spartanburg. A shield assembly is hidden behind the tree (see next photobox). Photo taken by Chris Patriarca (04/06/03).
These are the final Interstate 585 south, U.S. 176 east, and South Carolina 9 south reassurance shields just before the freeway ends and the business spur begins. The business spur (mostly unsigned) follows the continuation of U.S. 176 and South Carolina 9 along Pine Street south into downtown. These shields are found near the Spartanburg Regional Medical Center and the end of the limited access section. An END shield for Interstate 585 would be more appropriate, except that sporadic Interstate 585 shields appear south of the signalized intersection with McCravy Drive. Photos taken by Alex Nitzman (06/22/05 and 12/08/99).
The limited access portion of Interstate 585, U.S. 176, and South Carolina 9 ends at this traffic signal with McCravy Drive. U.S. 176 and South Carolina 9 continue as Pine Street into downtown Spartanburg. It is debatable whether Interstate 585 continues any further south than here: obviously, freeway standards end here, but signage for Interstate 585 continues south along Pine Street all the way to U.S. 29 ... both as a business spur and as an Interstate. Photo taken by Alex Nitzman (06/22/05).
Perspective from U.S. 29 north
The only Business Spur I-585 shield posted is on U.S. 29 northbound at the U.S. 176/South Carolina 9 (Pine Street) intersection. The Business Spur is 0.31 miles in length, extending slightly to the south from the U.S. 221 interchange (Exit 25) past McCravy Drive to U.S. 29/St. John Street and Main Street. Photo taken by Carter Buchanan (09/00).
Perspective from Interstate 585 north/U.S. 176/South Carolina 9 west
The shields that speak to the non-limited access portion of Interstate 585/U.S. 176/South Carolina 9 are these reassurance shields posted along northbound Pine Street, about one mile south of the freeway portion and before reaching McCravy Drive. Photo taken by Alex Nitzman (12/08/99).
U.S. 221/South Carolina 9 - Exits 25B-A button copy sign at the beginning of the freeway portion of Interstate 585. Note the median, which is substandard. There is an access point for a shopping center driveway just before the offramp to U.S. 221 north. Photo taken by Alex Nitzman (06/22/05).
Interstate 585, U.S. 176, and South Carolina 9 meet U.S. 221 at Exit 25B. Follow U.S. 221 north to Chesnee. Note that the jersey-style median barrier begins just before the exit ramp from northbound Interstate 585. Photo taken by Alex Nitzman (06/22/05).
Shortly thereafter, Interstate 585 and U.S. 176 split from South Carolina 9 at Exit 25A. Follow South Carolina 9 north to Boiling Springs. Photo taken by Alex Nitzman (06/22/05).
Shortly after South Carolina 9 splits, this set of reassurance shields for northbound Interstate 585 and westbound U.S. 176 is posted. On the steel deck girder overpass, note the "SC 9" white box sign. This is definitely an older bridge, one that dates back to the original construction of Interstate 585. Photo taken by Alex Nitzman (06/22/05).

Sources:

  1. Interstate 585 (Kurumi).

Page Updated January 9, 2007.

 
Mileage

State South Carolina
Mileage 2.25
Cities Spartanburg
Junctions Business Loop I-85
Source: October 31, 2002 Interstate Route Log and Finders List
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