US Bridges

I-77 over Big Cedar Creek

Fair

Fairfield County, South Carolina · 1.9 MI N-Richland CO · Structure no. 000000000007106

Built
1978
47 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
53,600
2023 count
Owner
State
State Highway Agency

About this bridge

I-77 over Big Cedar Creek is a concrete culvert carrying I-77 over Big Cedar Creek in Fairfield 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 53,600 vehicles a day, roughly 18% of them trucks, projected to reach 102,912 by 2043. The structure is 32 ft (9.8 m) long and 316 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesI-77
CrossesBig Cedar Creek
Location1.9 MI N-Richland CO
RouteInterstate 77
CountyFairfield County
StateSouth Carolina
Coordinates34.27099, -80.99756
Functional classRural 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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating65 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadOther
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width316 ft (96.3 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53,600 (2023)
Projected traffic102,912 by 2043
Trucks18%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$99,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I-77 over Big Cedar Creek built?

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

What condition is I-77 over Big Cedar Creek 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 June 2024.

How much traffic does I-77 over Big Cedar Creek carry?

About 53,600 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I-77 over Big Cedar Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 316 ft wide.

Who owns I-77 over Big Cedar Creek?

It is owned by the State Highway Agency.