US Bridges

I-126 EB over RR NS

Fair

Richland County, South Carolina · City of Columba · Structure no. 000000000007158

Built
1978
47 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
174 ft
3 main spans
Daily traffic
32,500
2023 count
Owner
State
State Highway Agency

About this bridge

I-126 EB over RR NS is a steel stringer/multi-beam or girder carrying I-126 EB over RR NS in Richland County, South Carolina. It was built in 1978, so it is 47 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 32,500 vehicles a day, roughly 3% of them trucks, projected to reach 40,300 by 2043. The structure is 174 ft (53 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-126 EB
CrossesRR NS
LocationCity of Columba
RouteInterstate 126
Coordinates34.00839, -81.05418
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating55 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length174 ft (53 m)
Longest span58 ft (17.7 m)
Deck width71 ft (21.7 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,500 (2023)
Projected traffic40,300 by 2043
Trucks3%
Lanes on structure4
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-126 EB over RR NS built?

It was built in 1978, making it 47 years old in 2025.

What condition is I-126 EB over RR NS 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 December 2023.

How much traffic does I-126 EB over RR NS carry?

About 32,500 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is I-126 EB over RR NS?

The structure is 174 ft (53 m) long with a longest span of 58 ft (17.7 m) and a deck 71 ft wide.

Who owns I-126 EB over RR NS?

It is owned by the State Highway Agency.