US Bridges

Sc 290 over I-85

Fair

Spartanburg County, South Carolina · 2.0MI E of Duncan · Structure no. 000000000008686

Built
1993
32 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
268 ft
4 main spans
Daily traffic
41,400
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 290 over I-85 is a steel continuous stringer/multi-beam or girder carrying Sc 290 over I-85 in Spartanburg County, South Carolina. It was built in 1993, so it is 32 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 41,400 vehicles a day, roughly 7% of them trucks, projected to reach 60,030 by 2043. The structure is 268 ft (81.7 m) long and 123 ft wide.

Location

Open in Google Maps
CarriesSc 290
CrossesI-85
Location2.0MI E of Duncan
RouteState Highway 290
CountySpartanburg County
StateSouth Carolina
Coordinates34.91397, -82.10751
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.1 US tons
Inventory rating25.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length268 ft (81.7 m)
Longest span92 ft (28 m)
Deck width123 ft (37.5 m)
Roadway width111 ft (33.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41,400 (2023)
Projected traffic60,030 by 2043
Trucks7%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sc 290 over I-85 built?

It was built in 1993, making it 32 years old in 2025.

What condition is Sc 290 over I-85 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2023.

How much traffic does Sc 290 over I-85 carry?

About 41,400 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Sc 290 over I-85?

The structure is 268 ft (81.7 m) long with a longest span of 92 ft (28 m) and a deck 123 ft wide.

Who owns Sc 290 over I-85?

It is owned by the State Highway Agency.