US Bridges

Sc 768 WB over I-77

Fair

Richland County, South Carolina · 5.5 MI S. of Cola · Structure no. 000000000008295

Built
1989
36 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
502 ft
4 main spans
Daily traffic
9,400
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 768 WB over I-77 is a steel continuous stringer/multi-beam or girder carrying Sc 768 WB over I-77 in Richland County, South Carolina. It was built in 1989, so it is 36 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 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 9,400 vehicles a day, roughly 11% of them trucks, projected to reach 12,690 by 2043. The structure is 502 ft (153 m) long and 49 ft wide.

Location

Open in Google Maps
CarriesSc 768 WB
CrossesI-77
Location5.5 MI S. of Cola
RouteState Highway 768
CountyRichland County
StateSouth Carolina
Coordinates33.95058, -80.97127
Functional classUrban Minor Arterial

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.
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 inspectionFebruary 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating29.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length502 ft (153 m)
Longest span175 ft (53.3 m)
Deck width49 ft (15 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,400 (2023)
Projected traffic12,690 by 2043
Trucks11%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 768 WB over I-77 built?

It was built in 1989, making it 36 years old in 2025.

What condition is Sc 768 WB over I-77 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 February 2024.

How much traffic does Sc 768 WB over I-77 carry?

About 9,400 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Sc 768 WB over I-77?

The structure is 502 ft (153 m) long with a longest span of 175 ft (53.3 m) and a deck 49 ft wide.

Who owns Sc 768 WB over I-77?

It is owned by the State Highway Agency.