US Bridges

I-77 NB over S. Fork Fishing Ck

Fair

Chester County, South Carolina · 2.5 MI N. of Sc 9 · Structure no. 000000000007211

Built
1979
46 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
330 ft
11 main spans
Daily traffic
28,150
2023 count
Owner
State
State Highway Agency

About this bridge

I-77 NB over S. Fork Fishing Ck is a concrete slab carrying I-77 NB over S. Fork Fishing Ck in Chester County, South Carolina. It was built in 1979, so it is 46 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 28,150 vehicles a day, roughly 18% of them trucks, projected to reach 54,048 by 2043. The structure is 330 ft (100.6 m) long and 44 ft wide.

CarriesI-77 NB
CrossesS. Fork Fishing Ck
Location2.5 MI N. of Sc 9
RouteInterstate 77
Coordinates34.78143, -81.03826
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length330 ft (100.6 m)
Longest span30 ft (9.1 m)
Deck width44 ft (13.5 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,150 (2023)
Projected traffic54,048 by 2043
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 S. Fork Fishing Ck built?

It was built in 1979, making it 46 years old in 2025.

What condition is I-77 NB over S. Fork Fishing Ck 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 March 2024.

How much traffic does I-77 NB over S. Fork Fishing Ck carry?

About 28,150 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I-77 NB over S. Fork Fishing Ck?

The structure is 330 ft (100.6 m) long with a longest span of 30 ft (9.1 m) and a deck 44 ft wide.

Who owns I-77 NB over S. Fork Fishing Ck?

It is owned by the State Highway Agency.