US Bridges

Sc 4/SC 302 over South Edisto River

Good

Aiken County, South Carolina · 10 MI E of Aiken · Structure no. 000000000010586

Built
2022
3 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
610 ft
1 main span
Daily traffic
3,300
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 4/SC 302 over South Edisto River is a prestressed concrete stringer/multi-beam or girder carrying Sc 4/SC 302 over South Edisto River in Aiken County, South Carolina. It was built in 2022, so it is 3 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,300 vehicles a day, roughly 9% of them trucks, projected to reach 5,247 by 2043. The structure is 610 ft (185.9 m) long and 46 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSc 4/SC 302
CrossesSouth Edisto River
Location10 MI E of Aiken
RouteState Highway 4
Coordinates33.57678, -81.51652
Functional classRural 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+13 approach)
Design loadHL 93
Structure length610 ft (185.9 m)
Longest span90 ft (27.4 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (2023)
Projected traffic5,247 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

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 Sc 4/SC 302 over South Edisto River built?

It was built in 2022, making it 3 years old in 2025.

What condition is Sc 4/SC 302 over South Edisto River 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 February 2024.

How much traffic does Sc 4/SC 302 over South Edisto River carry?

About 3,300 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Sc 4/SC 302 over South Edisto River?

The structure is 610 ft (185.9 m) long with a longest span of 90 ft (27.4 m) and a deck 46 ft wide.

Who owns Sc 4/SC 302 over South Edisto River?

It is owned by the State Highway Agency.