US Bridges

S-28-549 over Thoroughfare Branch

Good

Kershaw County, South Carolina · 9 MI NE Camden · Structure no. 000000000008360

Built
1990
35 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
42 ft
3 main spans
Daily traffic
350
2023 count
Owner
State
State Highway Agency

About this bridge

S-28-549 over Thoroughfare Branch is a concrete slab carrying S-28-549 over Thoroughfare Branch in Kershaw County, South Carolina. It was built in 1990, so it is 35 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 350 vehicles a day, roughly 9% of them trucks, projected to reach 511 by 2043. The structure is 42 ft (12.8 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-28-549
CrossesThoroughfare Branch
Location9 MI NE Camden
RouteState Highway 549
Coordinates34.32215, -80.48341
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.3 US tons
Inventory rating20.4 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 (7.9 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2023)
Projected traffic511 by 2043
Trucks9%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-28-549 over Thoroughfare Branch built?

It was built in 1990, making it 35 years old in 2025.

What condition is S-28-549 over Thoroughfare Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does S-28-549 over Thoroughfare Branch carry?

About 350 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is S-28-549 over Thoroughfare Branch?

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-28-549 over Thoroughfare Branch?

It is owned by the State Highway Agency.