US Bridges

I-126 WB over RR CSXT & RR NS

Fair

Richland County, South Carolina · City of Columbia · Structure no. 000000000003080

Built
1959
66 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
165 ft
3 main spans
Daily traffic
33,250
2023 count
Owner
State
State Highway Agency

About this bridge

I-126 WB over RR CSXT & RR NS is a steel stringer/multi-beam or girder carrying I-126 WB over RR CSXT & RR NS in Richland 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 33,250 vehicles a day, roughly 3% of them trucks, projected to reach 42,893 by 2043. The structure is 165 ft (50.3 m) long and 63 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-126 WB
CrossesRR CSXT & RR NS
LocationCity of Columbia
RouteInterstate 126
CountyRichland County
StateSouth Carolina
Coordinates34.02528, -81.09861
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.2 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length165 ft (50.3 m)
Longest span55 ft (16.8 m)
Deck width63 ft (19.3 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,250 (2023)
Projected traffic42,893 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-126 WB over RR CSXT & RR NS built?

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

What condition is I-126 WB over RR CSXT & 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 WB over RR CSXT & RR NS carry?

About 33,250 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is I-126 WB over RR CSXT & RR NS?

The structure is 165 ft (50.3 m) long with a longest span of 55 ft (16.8 m) and a deck 63 ft wide.

Who owns I-126 WB over RR CSXT & RR NS?

It is owned by the State Highway Agency.