US Bridges

S-12-54 over Susybole CR

Good

Chester County, South Carolina · 11.5MI NW Chester · Structure no. 000000000009145

Built
1997
28 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
197 ft
6 main spans
Daily traffic
75
2023 count
Owner
State
State Highway Agency

About this bridge

S-12-54 over Susybole CR is a concrete continuous slab carrying S-12-54 over Susybole CR in Chester County, South Carolina. It was built in 1997, so it is 28 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 75 vehicles a day, projected to reach 104 by 2043. The structure is 197 ft (60 m) long and 36 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesS-12-54
CrossesSusybole CR
Location11.5MI NW Chester
RouteState Highway 54
CountyChester County
StateSouth Carolina
Coordinates34.79264, -81.38743
Functional classRural Minor 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 protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 25 or greater
Structure length197 ft (60 m)
Longest span33 ft (10.1 m)
Deck width36 ft (11.1 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic104 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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-12-54 over Susybole CR built?

It was built in 1997, making it 28 years old in 2025.

What condition is S-12-54 over Susybole CR 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 November 2024.

How much traffic does S-12-54 over Susybole CR carry?

About 75 vehicles per day (2023 count).

How long is S-12-54 over Susybole CR?

The structure is 197 ft (60 m) long with a longest span of 33 ft (10.1 m) and a deck 36 ft wide.

Who owns S-12-54 over Susybole CR?

It is owned by the State Highway Agency.