US Bridges

Sc 12 WB over RR CSXT & RR NS

Good

Richland County, South Carolina · City of Columbia · Structure no. 000000000008035

Built
1984
41 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
192 ft
3 main spans
Daily traffic
14,050
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 12 WB over RR CSXT & RR NS is a steel stringer/multi-beam or girder carrying Sc 12 WB over RR CSXT & RR NS in Richland County, South Carolina. It was built in 1984, so it is 41 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,050 vehicles a day, roughly 3% of them trucks, projected to reach 33,018 by 2043. The structure is 192 ft (58.5 m) long and 93 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSc 12 WB
CrossesRR CSXT & RR NS
LocationCity of Columbia
RouteState Highway 12
Coordinates34.00333, -81.04583
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
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 rating69.7 US tons
Inventory rating53.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length192 ft (58.5 m)
Longest span87 ft (26.5 m)
Deck width93 ft (28.3 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,050 (2023)
Projected traffic33,018 by 2043
Trucks3%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Sc 12 WB over RR CSXT & RR NS built?

It was built in 1984, making it 41 years old in 2025.

What condition is Sc 12 WB over RR CSXT & RR NS in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does Sc 12 WB over RR CSXT & RR NS carry?

About 14,050 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Sc 12 WB over RR CSXT & RR NS?

The structure is 192 ft (58.5 m) long with a longest span of 87 ft (26.5 m) and a deck 93 ft wide.

Who owns Sc 12 WB over RR CSXT & RR NS?

It is owned by the State Highway Agency.