US Bridges

S-12-30 over Bear Owens Branch

Fair

Chester County, South Carolina · 6.6 MI W Chester · Structure no. 000000000007986

Built
1986
39 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
60 ft
4 main spans
Daily traffic
350
2023 count
Owner
State
State Highway Agency

About this bridge

S-12-30 over Bear Owens Branch is a concrete slab carrying S-12-30 over Bear Owens Branch in Chester County, South Carolina. It was built in 1986, so it is 39 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 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 350 vehicles a day, roughly 4% of them trucks, projected to reach 487 by 2025. The structure is 60 ft (18.3 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-12-30
CrossesBear Owens Branch
Location6.6 MI W Chester
RouteState Highway 30
Coordinates34.7025, -81.32972
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span15 ft (4.6 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2023)
Projected traffic487 by 2025
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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-12-30 over Bear Owens Branch built?

It was built in 1986, making it 39 years old in 2025.

What condition is S-12-30 over Bear Owens Branch 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 January 2025.

How much traffic does S-12-30 over Bear Owens Branch carry?

About 350 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is S-12-30 over Bear Owens Branch?

The structure is 60 ft (18.3 m) long with a longest span of 15 ft (4.6 m) and a deck 33 ft wide.

Who owns S-12-30 over Bear Owens Branch?

It is owned by the State Highway Agency.