US Bridges

Sc 6 over I-20

Good

Lexington County, South Carolina · 2 MI S of Lexington · Structure no. 000000000004609

Built
2006
19 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
292 ft
2 main spans
Daily traffic
23,800
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 6 over I-20 is a steel continuous stringer/multi-beam or girder carrying Sc 6 over I-20 in Lexington County, South Carolina. It was built in 2006, so it is 19 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 23,800 vehicles a day, roughly 4% of them trucks, projected to reach 32,130 by 2043. The structure is 292 ft (89 m) long and 91 ft wide.

CarriesSc 6
CrossesI-20
Location2 MI S of Lexington
RouteState Highway 6
Coordinates33.95807, -81.23185
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length292 ft (89 m)
Longest span146 ft (44.5 m)
Deck width91 ft (27.7 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,800 (2023)
Projected traffic32,130 by 2043
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sc 6 over I-20 built?

It was built in 2006, making it 19 years old in 2025.

What condition is Sc 6 over I-20 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Sc 6 over I-20 carry?

About 23,800 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Sc 6 over I-20?

The structure is 292 ft (89 m) long with a longest span of 146 ft (44.5 m) and a deck 91 ft wide.

Who owns Sc 6 over I-20?

It is owned by the State Highway Agency.