US Bridges

S-4-97 over Over I-85

Fair

Anderson County, South Carolina · 6.9MI N Anderson · Structure no. 000000000003800

Built
1962
63 years old, rebuilt 2000
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
256 ft
4 main spans
Daily traffic
450
2023 count
Owner
State
State Highway Agency

About this bridge

S-4-97 over Over I-85 is a prestressed concrete stringer/multi-beam or girder carrying S-4-97 over Over I-85 in Anderson County, South Carolina. It was built in 1962 and reconstructed in 2000, 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 450 vehicles a day, roughly 8% of them trucks, projected to reach 554 by 2043. The structure is 256 ft (78 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesS-4-97
CrossesOver I-85
Location6.9MI N Anderson
RouteState Highway 97
CountyAnderson County
StateSouth Carolina
Coordinates34.60278, -82.64667
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 rating65.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length256 ft (78 m)
Longest span75 ft (22.9 m)
Deck width30 ft (9.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2023)
Projected traffic554 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
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 S-4-97 over Over I-85 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2000.

What condition is S-4-97 over 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 January 2025.

How much traffic does S-4-97 over Over I-85 carry?

About 450 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is S-4-97 over Over I-85?

The structure is 256 ft (78 m) long with a longest span of 75 ft (22.9 m) and a deck 30 ft wide.

Who owns S-4-97 over Over I-85?

It is owned by the State Highway Agency.