US Bridges

S-45-271 over Kingstree SW Canal

Fair

Williamsburg County, South Carolina · Town of Kingstree · Structure no. 000000000005873

Built
1970
55 years old, rebuilt 1992
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
30 ft
2 main spans
Daily traffic
2,800
2023 count
Owner
State
State Highway Agency

About this bridge

S-45-271 over Kingstree SW Canal is a concrete slab carrying S-45-271 over Kingstree SW Canal in Williamsburg County, South Carolina. It was built in 1970 and reconstructed in 1992, so it is 55 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 2,800 vehicles a day, roughly 5% of them trucks, projected to reach 3,584 by 2043. The structure is 30 ft (9.1 m) long and 50 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesS-45-271
CrossesKingstree SW Canal
LocationTown of Kingstree
RouteState Highway 271
Coordinates33.67222, -79.82278
Functional classUrban Local

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.3 US tons
Inventory rating27.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 15
Structure length30 ft (9.1 m)
Longest span15 ft (4.6 m)
Deck width50 ft (15.1 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2023)
Projected traffic3,584 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 S-45-271 over Kingstree SW Canal built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1992.

What condition is S-45-271 over Kingstree SW Canal 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 October 2023.

How much traffic does S-45-271 over Kingstree SW Canal carry?

About 2,800 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-45-271 over Kingstree SW Canal?

The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 50 ft wide.

Who owns S-45-271 over Kingstree SW Canal?

It is owned by the State Highway Agency.