US Bridges

I-26 WB over NS RR

Fair

Spartanburg County, South Carolina · 5.5 MI SE Inman · Structure no. 000000000003089

Built
1959
66 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
180 ft
3 main spans
Daily traffic
24,600
2023 count
Owner
State
State Highway Agency

About this bridge

I-26 WB over NS RR is a steel stringer/multi-beam or girder carrying I-26 WB over NS RR 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 5 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 24,600 vehicles a day, roughly 19% of them trucks, projected to reach 30,504 by 2043. The structure is 180 ft (54.9 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-26 WB
CrossesNS RR
Location5.5 MI SE Inman
RouteInterstate 26
CountySpartanburg County
StateSouth Carolina
Coordinates34.99389, -82.02016
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span60 ft (18.3 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,600 (2023)
Projected traffic30,504 by 2043
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$645,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-26 WB over NS RR built?

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

What condition is I-26 WB over NS 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 August 2023.

How much traffic does I-26 WB over NS RR carry?

About 24,600 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is I-26 WB over NS RR?

The structure is 180 ft (54.9 m) long with a longest span of 60 ft (18.3 m) and a deck 32 ft wide.

Who owns I-26 WB over NS RR?

It is owned by the State Highway Agency.