Interstate 585 / U.S. 176

Interstate 585 overlays 2.25 miles of U.S. 176 (N Pine Street) from U.S. 221 (Whitney Road) northward from the Spartanburg city line to Business Loop I-85 near Lone Oak. The designation is unique in that it spurs southeast from an Interstate Business Loop instead of a parent or branch route. This was not always the case as Business Loop I-85 was the previous alignment of Interstate 85 until October 1995.

Exit numbers along Interstate 585 use the mileposts for U.S. 176 starting from the North Carolina state line northwest of Landrum. The expressway along U.S. 176 (N Pine Street) extends northwest from Business Loop I-85 to Fairforest Road, just shy of I-85.

Plans were made to extend the Interstate standard portion of U.S. 176 all the way to I-85 as part of a two phase project announced in 2001. Work focused on upgrading N Pine Street between I-585 and Valley Falls Road. Construction included the removal of an at-grade intersection with Tenosha Drive, access and capacity improvements to roads leading to the adjacent USC Upstate campus, conversion of the interchange with Valley Falls Road from a folded diamond to a full diamond, relocation of Hodge Road to no longer intersect U.S. 176 and the realignment of ramps with Business Loop I-85.¹ The $63 million project commenced in 2003 and was completed at a ribbon cutting ceremony held on October 25, 2006.²

Until 1995, Interstate 585 directly connected with I-85. The 1991 South Carolina Official Highway Map shows the new alignment for I-85 partially under construction.

I-585/U.S. 176 (N Pine Street) north of the S.C. 9/U.S. 176 Connector (Church Street) overpass just outside the Spartanburg city limits. - 05/25/2021

Business Spur I-585

Business Spur I-585 overlaid 0.57 miles of U.S. 176/S.C. 9 (N Pine Street) leading south from the freeway end beyond U.S. 221 (Whitney Road) to Garner Road. The spur is marked with a single I-585 reassurance marker along Pine Street north of Garner Road. Prior to 2004, signs for Spur I-585 were posted as far south as St. John Street (U.S. 29).

Interstate 585 Guides

North - 37 photos

South - 22 photos

scenes

Main Street east at U.S. 176/S.C. 9 (Pine Street) outside Downtown Spartanburg. Business Spur I-585 was referenced here prior to the relocationof U.S. 29 onto parallel St. John Street.

09/02/00

2 photos

The Business Spur I-585 shield for U.S. 176/S.C. 9 (Pine Street) north at Main Street eventually bent to face southbound traffic along Pine Street southbound.

10/05/01

U.S. 221 turns off Church Street onto Whitney Road to meet I-585/U.S. 176 (N Pine Street). Church Street continues 0.36 miles north as unsigned U.S. 176 Connector to become S.C. 9 (Boiling Springs Road) beyond I-585.

12/15/16

Trailblazers posted for Interstate 585 south / U.S. 176 east for California Avenue west from Milliken Road south.

08/03/13

A half diamond interchange joins California Avenue with I-585/U.S. 176 (N Pine Street) southbound. Milliken Road parallels N Pine Street 0.93 miles to an entrance ramp for I-585/U.S. 176 north toward Inman.

08/03/13

References:

1. "Agency mapping new route to USCS." Herald-Journal (Spartanburg, SC), February 12, 2001.
2. "Highway project near USC Upstate open to drivers." Herald-Journal (Spartanburg, SC), October 14, 2006.

Connect with:

Interstate 85

U.S. 29

U.S. 176

U.S. 221

Page Updated Monday June 21, 2021.