US Bridges

I-77 NB over Little Wateree Creek

Fair

Fairfield County, South Carolina · 2.7 MI N of S-41 · Structure no. 000000000007450

Built
1981
44 years old, rebuilt 2023
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
440 ft
4 main spans
Daily traffic
24,250
2023 count
Owner
State
State Highway Agency

About this bridge

I-77 NB over Little Wateree Creek is a steel continuous stringer/multi-beam or girder carrying I-77 NB over Little Wateree Creek in Fairfield County, South Carolina. It was built in 1981 and reconstructed in 2023, so it is 44 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 24,250 vehicles a day, roughly 18% of them trucks, projected to reach 46,560 by 2043. The structure is 440 ft (134.1 m) long and 44 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

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CarriesI-77 NB
CrossesLittle Wateree Creek
Location2.7 MI N of S-41
RouteInterstate 77
CountyFairfield County
StateSouth Carolina
Coordinates34.44335, -80.99287
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.5 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4 (+5 approach)
Design loadHS 20
Structure length440 ft (134.1 m)
Longest span80 ft (24.4 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,250 (2023)
Projected traffic46,560 by 2043
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-77 NB over Little Wateree Creek built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2023.

What condition is I-77 NB over Little Wateree 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 NB over Little Wateree Creek carry?

About 24,250 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I-77 NB over Little Wateree Creek?

The structure is 440 ft (134.1 m) long with a longest span of 80 ft (24.4 m) and a deck 44 ft wide.

Who owns I-77 NB over Little Wateree Creek?

It is owned by the State Highway Agency.