US Bridges

S-40-52 EB over I-77

Good

Richland County, South Carolina · 10 MI N Columbia · Structure no. 000000000006921

Built
1976
49 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
312 ft
4 main spans
Daily traffic
8,100
2023 count
Owner
State
State Highway Agency

About this bridge

S-40-52 EB over I-77 is a steel stringer/multi-beam or girder carrying S-40-52 EB over I-77 in Richland County, South Carolina. It was built in 1976, so it is 49 years old, older 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 8,100 vehicles a day, roughly 2% of them trucks, projected to reach 10,935 by 2043. The structure is 312 ft (95.1 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-40-52 EB
CrossesI-77
Location10 MI N Columbia
RouteState Highway 52
Coordinates34.13541, -80.96365
Functional classUrban Minor Arterial

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length312 ft (95.1 m)
Longest span116 ft (35.4 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,100 (2023)
Projected traffic10,935 by 2043
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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 S-40-52 EB over I-77 built?

It was built in 1976, making it 49 years old in 2025.

What condition is S-40-52 EB over I-77 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 2023.

How much traffic does S-40-52 EB over I-77 carry?

About 8,100 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is S-40-52 EB over I-77?

The structure is 312 ft (95.1 m) long with a longest span of 116 ft (35.4 m) and a deck 42 ft wide.

Who owns S-40-52 EB over I-77?

It is owned by the State Highway Agency.