US Bridges

S-45-28 over Br of Clapp Swp (co Line

Good

Williamsburg County, South Carolina · 9.0 MI W Cades · Structure no. 000000000008937

Built
1995
30 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete Continuous
Length
66 ft
3 main spans
Daily traffic
600
2023 count
Owner
State
State Highway Agency

About this bridge

S-45-28 over Br of Clapp Swp (co Line is a concrete continuous slab carrying S-45-28 over Br of Clapp Swp (co Line in Williamsburg County, South Carolina. It was built in 1995, so it is 30 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 600 vehicles a day, roughly 9% of them trucks, projected to reach 876 by 2043. The structure is 66 ft (20.1 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesS-45-28
CrossesBr of Clapp Swp (co Line
Location9.0 MI W Cades
RouteState Highway 28
CountyWilliamsburg County
StateSouth Carolina
Coordinates33.81028, -79.93972
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.1 US tons
Inventory rating51.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length66 ft (20.1 m)
Longest span22 ft (6.7 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2023)
Projected traffic876 by 2043
Trucks9%
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 S-45-28 over Br of Clapp Swp (co Line built?

It was built in 1995, making it 30 years old in 2025.

What condition is S-45-28 over Br of Clapp Swp (co Line 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 September 2023.

How much traffic does S-45-28 over Br of Clapp Swp (co Line carry?

About 600 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is S-45-28 over Br of Clapp Swp (co Line?

The structure is 66 ft (20.1 m) long with a longest span of 22 ft (6.7 m) and a deck 35 ft wide.

Who owns S-45-28 over Br of Clapp Swp (co Line?

It is owned by the State Highway Agency.