US Bridges

US321/DEERFIELD RD over Deerfield

Fair

Jasper County, South Carolina · 6MI N of Hardeeville · Structure no. 000000000000035

Built
1940
85 years old, rebuilt 1971
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
4,300
2023 count
Owner
State
State Highway Agency

About this bridge

US321/DEERFIELD RD over Deerfield is a concrete culvert carrying US321/DEERFIELD RD over Deerfield in Jasper County, South Carolina. It was built in 1940 and reconstructed in 1971, so it is 85 years old, older 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 4,300 vehicles a day, roughly 27% of them trucks, projected to reach 7,482 by 2043. The structure is 23 ft (7 m) long and 57 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesUS321/DEERFIELD RD
CrossesDeerfield
Location6MI N of Hardeeville
RouteU.S. Route 321
CountyJasper County
StateSouth Carolina
Coordinates32.38139, -81.09694
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating23.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width57 ft (17.4 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,300 (2023)
Projected traffic7,482 by 2043
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 US321/DEERFIELD RD over Deerfield built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1971.

What condition is US321/DEERFIELD RD over Deerfield 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 November 2023.

How much traffic does US321/DEERFIELD RD over Deerfield carry?

About 4,300 vehicles per day (2023 count), of which roughly 27% are trucks.

How long is US321/DEERFIELD RD over Deerfield?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m) and a deck 57 ft wide.

Who owns US321/DEERFIELD RD over Deerfield?

It is owned by the State Highway Agency.