US Bridges

S-42-975 over I-26

Fair

Spartanburg County, South Carolina · 2.5 MI E of Inman · Structure no. 000000000003126

Built
1959
66 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete
Length
212 ft
4 main spans
Daily traffic
2,900
2023 count
Owner
State
State Highway Agency

About this bridge

S-42-975 over I-26 is a concrete tee beam carrying S-42-975 over I-26 in Spartanburg County, South Carolina. It was built in 1959, so it is 66 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 2,900 vehicles a day, roughly 3% of them trucks, projected to reach 4,350 by 2043. The structure is 212 ft (64.6 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesS-42-975
CrossesI-26
Location2.5 MI E of Inman
RouteState Highway 975
Coordinates35.04968, -82.04587
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 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 geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.1 US tons
Inventory rating22.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length212 ft (64.6 m)
Longest span56 ft (17.1 m)
Deck width30 ft (9.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2023)
Projected traffic4,350 by 2043
Trucks3%
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 statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$509,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was S-42-975 over I-26 built?

It was built in 1959, making it 66 years old in 2025.

What condition is S-42-975 over I-26 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 May 2023.

How much traffic does S-42-975 over I-26 carry?

About 2,900 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S-42-975 over I-26?

The structure is 212 ft (64.6 m) long with a longest span of 56 ft (17.1 m) and a deck 30 ft wide.

Who owns S-42-975 over I-26?

It is owned by the State Highway Agency.