US Bridges

Sc 56 over Duncan Creek

Fair

Laurens County, South Carolina · 9.8 MI NE of Laurens · Structure no. 000000000000809

Built
1937
88 years old
Condition
Fair
inspected April 2023
Type
Tee Beam
Concrete
Length
210 ft
7 main spans
Daily traffic
1,000
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 56 over Duncan Creek is a concrete tee beam carrying Sc 56 over Duncan Creek in Laurens County, South Carolina. It was built in 1937, so it is 88 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 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 1,000 vehicles a day, roughly 16% of them trucks, projected to reach 1,460 by 2043. The structure is 210 ft (64 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSc 56
CrossesDuncan Creek
Location9.8 MI NE of Laurens
RouteState Highway 56
CountyLaurens County
StateSouth Carolina
Coordinates34.53528, -81.84823
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionApril 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadH 15
Structure length210 ft (64 m)
Longest span30 ft (9.1 m)
Deck width24 ft (7.2 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2023)
Projected traffic1,460 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 56 over Duncan Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is Sc 56 over Duncan 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 April 2023.

How much traffic does Sc 56 over Duncan Creek carry?

About 1,000 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Sc 56 over Duncan Creek?

The structure is 210 ft (64 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.

Who owns Sc 56 over Duncan Creek?

It is owned by the State Highway Agency.