US Bridges

S-27-115 over Great Swamp

Fair

Jasper County, South Carolina · 4.2MI NW Ridgeland · Structure no. 000000000002194

Built
1955
70 years old, rebuilt 2001
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
42 ft
3 main spans
Daily traffic
275
2023 count
Owner
State
State Highway Agency

About this bridge

S-27-115 over Great Swamp is a concrete slab carrying S-27-115 over Great Swamp in Jasper County, South Carolina. It was built in 1955 and reconstructed in 2001, so it is 70 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 275 vehicles a day, roughly 5% of them trucks, projected to reach 352 by 2043. The structure is 42 ft (12.8 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesS-27-115
CrossesGreat Swamp
Location4.2MI NW Ridgeland
RouteState Highway 115
CountyJasper County
StateSouth Carolina
Coordinates32.53844, -81.04589
Functional classRural 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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.1 US tons
Inventory rating20.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 10
Structure length42 ft (12.8 m)
Longest span14 ft (4.3 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2023)
Projected traffic352 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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-27-115 over Great Swamp built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2001.

What condition is S-27-115 over Great 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 November 2023.

How much traffic does S-27-115 over Great Swamp carry?

About 275 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-27-115 over Great Swamp?

The structure is 42 ft (12.8 m) long with a longest span of 14 ft (4.3 m) and a deck 26 ft wide.

Who owns S-27-115 over Great Swamp?

It is owned by the State Highway Agency.