US Bridges

US 278 WB over New River

Fair

Jasper County, South Carolina · 4 MI NE of Hardeeville · Structure no. 000000000009031

Built
1996
29 years old
Condition
Fair
inspected December 2023
Type
Slab
Concrete Continuous
Length
360 ft
12 main spans
Daily traffic
16,300
2023 count
Owner
State
State Highway Agency

About this bridge

US 278 WB over New River is a concrete continuous slab carrying US 278 WB over New River in Jasper County, South Carolina. It was built in 1996, so it is 29 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 16,300 vehicles a day, roughly 7% of them trucks, projected to reach 19,560 by 2043. The structure is 360 ft (109.7 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 278 WB
CrossesNew River
Location4 MI NE of Hardeeville
RouteU.S. Route 278
Coordinates32.30778, -81.00611
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating52.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20 + Mod
Structure length360 ft (109.7 m)
Longest span30 ft (9.1 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,300 (2023)
Projected traffic19,560 by 2043
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 278 WB over New River built?

It was built in 1996, making it 29 years old in 2025.

What condition is US 278 WB over New River 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 December 2023.

How much traffic does US 278 WB over New River carry?

About 16,300 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US 278 WB over New River?

The structure is 360 ft (109.7 m) long with a longest span of 30 ft (9.1 m) and a deck 47 ft wide.

Who owns US 278 WB over New River?

It is owned by the State Highway Agency.