US Bridges

S-42-839 over I-85

Fair

Spartanburg County, South Carolina · 3 MI NW of Spartanburg · Structure no. 000000000008304

Built
1989
36 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
531 ft
4 main spans
Daily traffic
1,000
2023 count
Owner
State
State Highway Agency

About this bridge

S-42-839 over I-85 is a steel continuous stringer/multi-beam or girder carrying S-42-839 over I-85 in Spartanburg County, South Carolina. It was built in 1989, so it is 36 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 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 1,280 by 2043. The structure is 531 ft (162 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-42-839
CrossesI-85
Location3 MI NW of Spartanburg
RouteState Highway 839
Coordinates34.97944, -82.00778
Functional classUrban Local

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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating36.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length531 ft (162 m)
Longest span168 ft (51.2 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2023)
Projected traffic1,280 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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-42-839 over I-85 built?

It was built in 1989, making it 36 years old in 2025.

What condition is S-42-839 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 September 2023.

How much traffic does S-42-839 over I-85 carry?

About 1,000 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-42-839 over I-85?

The structure is 531 ft (162 m) long with a longest span of 168 ft (51.2 m) and a deck 47 ft wide.

Who owns S-42-839 over I-85?

It is owned by the State Highway Agency.