US Bridges

I-85 Sbl over S-280 and C.& NW RR

Fair

Anderson County, South Carolina · 6.7MI NW of Anderson · Structure no. 000000000003788

Built
1962
63 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
200 ft
4 main spans
Daily traffic
25,150
2023 count
Owner
State
State Highway Agency

About this bridge

I-85 Sbl over S-280 and C.& NW RR is a prestressed concrete stringer/multi-beam or girder carrying I-85 Sbl over S-280 and C.& NW RR in Anderson County, South Carolina. It was built in 1962, so it is 63 years old, older 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 25,150 vehicles a day, roughly 26% of them trucks. The structure is 200 ft (61 m) long and 41 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesI-85 Sbl
CrossesS-280 and C.& NW RR
Location6.7MI NW of Anderson
RouteInterstate 85
CountyAnderson County
StateSouth Carolina
Coordinates34.56959, -82.73197
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating25.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length200 ft (61 m)
Longest span50 ft (15.2 m)
Deck width41 ft (12.5 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,150 (2023)
Projected traffic—
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-85 Sbl over S-280 and C.& NW RR built?

It was built in 1962, making it 63 years old in 2025.

What condition is I-85 Sbl over S-280 and C.& NW RR 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 February 2025.

How much traffic does I-85 Sbl over S-280 and C.& NW RR carry?

About 25,150 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is I-85 Sbl over S-280 and C.& NW RR?

The structure is 200 ft (61 m) long with a longest span of 50 ft (15.2 m) and a deck 41 ft wide.

Who owns I-85 Sbl over S-280 and C.& NW RR?

It is owned by the State Highway Agency.