US Bridges

S-12-25 over Scl RR

Fair

Chester County, South Carolina · 10.2 MI SW Chester · Structure no. 000000000007339

Built
1980
45 years old
Condition
Fair
inspected December 2024
Type
Slab
Prestressed Concrete
Length
162 ft
3 main spans
Daily traffic
100
2023 count
Owner
State
State Highway Agency

About this bridge

S-12-25 over Scl RR is a prestressed concrete slab carrying S-12-25 over Scl RR in Chester County, South Carolina. It was built in 1980, so it is 45 years old, younger 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 5 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 100 vehicles a day, roughly 9% of them trucks, projected to reach 139 by 2043. The structure is 162 ft (49.4 m) long and 20 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesS-12-25
CrossesScl RR
Location10.2 MI SW Chester
RouteState Highway 25
CountyChester County
StateSouth Carolina
Coordinates34.63782, -81.38474
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating38.9 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length162 ft (49.4 m)
Longest span54 ft (16.5 m)
Deck width20 ft (6.1 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic139 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed11.2 mi (18 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$378,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was S-12-25 over Scl RR built?

It was built in 1980, making it 45 years old in 2025.

What condition is S-12-25 over Scl RR 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 December 2024.

How much traffic does S-12-25 over Scl RR carry?

About 100 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is S-12-25 over Scl RR?

The structure is 162 ft (49.4 m) long with a longest span of 54 ft (16.5 m) and a deck 20 ft wide.

Who owns S-12-25 over Scl RR?

It is owned by the State Highway Agency.