US Bridges

S-43-522 over Green Swamp

Fair

Sumter County, South Carolina · 2 MI S of Sumter · Structure no. 000000000006585

Built
1974
51 years old
Condition
Fair
inspected July 2023
Type
Slab
Concrete
Length
135 ft
9 main spans
Daily traffic
5,000
2023 count
Owner
State
State Highway Agency

About this bridge

S-43-522 over Green Swamp is a concrete slab carrying S-43-522 over Green Swamp in Sumter County, South Carolina. It was built in 1974, so it is 51 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 5,000 vehicles a day, roughly 3% of them trucks, projected to reach 6,250 by 2043. The structure is 135 ft (41.1 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-43-522
CrossesGreen Swamp
Location2 MI S of Sumter
RouteState Highway 522
Coordinates33.88811, -80.35684
Functional classUrban 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
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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating32.2 US tons
Inventory rating19.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans9
Design loadH 10
Structure length135 ft (41.1 m)
Longest span15 ft (4.6 m)
Deck width33 ft (10.2 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2023)
Projected traffic6,250 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$366,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-43-522 over Green Swamp built?

It was built in 1974, making it 51 years old in 2025.

What condition is S-43-522 over Green Swamp 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 July 2023.

How much traffic does S-43-522 over Green Swamp carry?

About 5,000 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is S-43-522 over Green Swamp?

The structure is 135 ft (41.1 m) long with a longest span of 15 ft (4.6 m) and a deck 33 ft wide.

Who owns S-43-522 over Green Swamp?

It is owned by the State Highway Agency.