List of Interstate Highways in South Carolina

{{Infobox state highway system

|title=Interstate Highways of South Carolina

|shields={{infobox road/shieldmain/USA|state=SC|type=I|route=26}}{{infobox road/shieldmain/USA|state=SC|type=I|route=385}}{{infobox road/shieldmain/USA|state=SC|type=BS|route=20}}

|caption=Highway shields for I-26, I-385, and I-20 Bus. Spur

|maint=SCDOT

|map={{maplink|frame=yes|plain=yes|frame-align=center|frame-width=290|frame-height=240|zoom=6|frame-latitude=33.639|frame-longitude=-80.950|type1=shape-inverse|id1=Q1456|title1=South Carolina|stroke-color1=#000|stroke-width1=1|from2=Interstate 20 in South Carolina.map|from3=Interstate 26 in South Carolina.map|from4=Interstate 73 in South Carolina.map|from5=Interstate 74 in South Carolina.map|from6=Interstate 77 in South Carolina.map|from7=Interstate 85 in South Carolina.map|from8=Interstate 95 in South Carolina.map|from9=Interstate 126.map|from10=Interstate 185 (South Carolina).map|from11=Interstate 385.map|from12=Interstate 520 in South Carolina.map|from13=Interstate 526.map|from14=Interstate 585.map}}

|map_custom=yes

|map_notes=Interstate Highways highlighted in red; future sections in blue; unbuilt sections in orange

|map_alt=

|length_mi=862.60

|length_ref=

|formed={{start date|1956|06|29}}{{cite magazine |last = Weingroff |first = Richard F. |title = Federal-Aid Highway Act of 1956, Creating the Interstate System |url = https://highways.dot.gov/public-roads/summer-1996/federal-aid-highway-act-1956-creating-interstate-system |magazine = Public Roads |location = Washington, DC |publisher = Federal Highway Administration |volume = 60 |issue = 1 |date = Summer 1996 |access-date = March 16, 2012 |issn = 0033-3735 }}

|interstate=Interstate XX (I-XX)

|label1=Business Loop:

|field1=Interstate XX Business Loop (I-XX Bus.)

|label2=Business Spur:

|field2=Interstate XX Business Spur (I-XX Bus.)

|links=SC}}

There are 11 Interstate Highways—5 primary and 6 auxiliary—that exist entirely or partially in the U.S. state of South Carolina. As of December 31, 2013, the state had a total of {{convert|850.80|mi}} of interstate and {{convert|11.80|mi}} of interstate business, all maintained by the South Carolina Department of Transportation (SCDOT).{{cite web |first = Edward |last = Starks |date = January 27, 2022 |url = https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table03.cfm |title = Table 3: Interstate Routes in Each of the 50 States, District of Columbia, and Puerto Rico |work = FHWA Route Log and Finder List |publisher = Federal Highway Administration |access-date = January 23, 2023 }}

__TOC__

Primary Interstates

{{routelist top|length_ref={{cite web |first = Edward |last = Starks |date = January 27, 2022 |title = Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2021 |url = https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table01.cfm |work = FHWA Route Log and Finder List |publisher = Federal Highway Administration |access-date = January 23, 2023 }}}}

{{routelist row

|state=SC

|type=I

|route=20

|length_mi=141.51

|length_ref=

|terminus_a=I-20 at the GA state line

|terminus_b=I-95 / I-20 Bus. in Florence

|established=1964

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=none

}}

{{routelist row

|state=SC

|type=I

|route=26

|length_mi=220.95

|length_ref=

|terminus_a=I-26 at the NC state line

|terminus_b=US 17 in Charleston

|established=1960

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=none

}}

{{routelist row

|state=SC

|type=I

|route=73

|length_mi=

|length_ref=

|terminus_a=US 17 in Briarcliffe Acres

|terminus_b=Future I-73 at the NC state line

|established=proposed

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=Future designation along SC 22

}}

{{routelist row

|state=SC

|type=I

|route=74

|length_mi=

|length_ref=

|terminus_a=Future I-74 at the NC state line

|terminus_b=US 17 in Garden City

|established=proposed

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=Future designation along SC 31

}}

{{routelist row

|state=SC

|type=I

|route=77

|length_mi=91.05

|length_ref=

|terminus_a=I-26 in Cayce

|terminus_b=I-77 / US 21 at the NC state line

|established=1975

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=none

}}

{{routelist row

|state=SC

|type=I

|route=85

|length_mi=106.28

|length_ref=

|terminus_a=I-85 at the GA state line

|terminus_b=I-85 at the NC state line

|established=1959

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=none

}}

{{routelist row

|state=SC

|type=I

|route=95

|length_mi=198.76

|length_ref=

|terminus_a=I-95 at the GA state line

|terminus_b=I-95 at the NC state line

|established=1968

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=none

}}

Auxiliary Interstates

{{routelist top|length_ref={{cite web |first = Edward |last = Starks |date = January 27, 2022 |url = https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table02.cfm |title = Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2021 |work = FHWA Route Log and Finder List |publisher = Federal Highway Administration |access-date = January 23, 2023 }}}}

{{routelist row

|state=SC

|type=I

|route=126

|length_mi=3.680

|length_ref=

|terminus_a=I-26 / US 76 in Columbia

|terminus_b=US 21 / US 76 / US 176 / US 321 in Columbia

|established=1961

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=none

}}

{{routelist row

|state=SC

|type=I

|route=185

|length_mi=17.7

|length_ref=

|terminus_a=I-385 in Mauldin

|terminus_b=US 29 in Greenville

|established=1961

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=Toll road between I-385 and I-85.

}}

{{routelist row

|state=SC

|type=I

|route=326

|length_mi=5.24

|length_ref=

|terminus_a=I-26 in Cayce

|terminus_b=SC 48 in Columbia

|established=1976

|established_ref=

|decommissioned=1995

|decommissioned_ref={{AASHTO minutes |year = 1995S | access-date= May 19, 2013}}

|notes=Was an unsigned designated route, replaced by I-77.

}}

{{routelist row

|state=SC

|type=I

|route=385

|length_mi=42.16

|length_ref=

|terminus_a=I-26 near Clinton

|terminus_b=US 276 in Greenville

|established=1962

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=none

}}

{{routelist row

|state=SC

|type=I

|route=520

|length_mi=7.72

|length_ref=

|terminus_a=I-520 at the GA state line

|terminus_b=I-20 in North Augusta

|established=2004

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=none

}}

{{routelist row

|state=SC

|type=I

|route=526

|length_mi=19.26

|length_ref=

|terminus_a=US 17 / SC 7 in Charleston

|terminus_b=I-526 Bus. / US 17 in Mount Pleasant

|established=1989

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=none

}}

{{routelist row

|state=SC

|type=I

|route=585

|length_mi=2.25

|length_ref=

|terminus_a=US 176 / US 221 / SC 9 in Spartanburg

|terminus_b=I-85 Bus. / US 176 near Spartanburg

|established=1959

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=none

}}

Business routes

{{routelist row

|state=SC

|type=BS

|route=20

|dab=Florence

|length_mi=2.110

|length_ref=

|terminus_a=I-20 / I-95 in Florence

|terminus_b=US 76 Conn. / West Evans Street in Florence

|established=1970

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=none

}}

{{routelist row

|state=SC

|type=BL

|route=85

|dab=Spartanburg

|length_mi=8.770

|length_ref=

|terminus_a=I-85 northwest of Fairforest

|terminus_b=I-85 east of Valley Falls

|established=1995

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=Freeway-grade business loop

}}

{{routelist row

|state=SC

|type=BS

|route=126

|dab=Columbia

|length_mi=0.60

|length_ref=

|terminus_a=I-126 / US 21 / US 76 / US 176 / US 321 in Columbia

|terminus_b=US 21 / US 76 / US 176 / US 321 in Columbia

|established=1980

|established_ref=

|decommissioned=yes

|decommissioned_ref=

|notes=none

}}

{{routelist row

|state=SC

|type=BS

|route=385

|dab=Greenville

|length_mi=0.490

|length_ref=

|terminus_a=I-385 / US 276 in Greenville

|terminus_b=US 29 / SC 183 in Greenville

|established=1962

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=Unsigned business spur

}}

{{routelist row

|state=SC

|type=BS

|route=526

|dab=Mount Pleasant

|length_mi=1.570

|length_ref=

|terminus_a=I-526 / US 17 in Mount Pleasant

|terminus_b=SC 703 in Mount Pleasant

|established=1992

|established_ref=

|decommissioned=

|decommissioned_ref=

|notes=none

}}

{{routelist row

|state=SC

|type=BS

|route=585

|dab=Spartanburg

|length_mi=1.60

|length_ref=

|terminus_a=US 29 / US 176 / SC 9 in Spartanburg

|terminus_b=I-585 / US 176 / US 221 / SC 9 in Spartanburg

|established=1959

|established_ref=

|decommissioned=yes

|decommissioned_ref=

|notes=none

}}

References

External links

{{commons category-inline|Interstate Highways in South Carolina}}
[http://www.interstate-guide.com/ Interstate Guide]

Interstate Highways

List of Interstate Highways in South Carolina

Primary Interstates

Auxiliary Interstates

Business routes

See also

References

External links