US Bridges

S-12-36 over Little Rock CR

FairPosted for load

Chester County, South Carolina · 10.5 SE Chester · Structure no. 000000000002011

Built
1954
71 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
72 ft
1 main span
Daily traffic
75
2023 count
Owner
State
State Highway Agency

About this bridge

S-12-36 over Little Rock CR is a concrete continuous stringer/multi-beam or girder carrying S-12-36 over Little Rock CR in Chester County, South Carolina. It was built in 1954, so it is 71 years old, older 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. Its operating status is: posted for load restriction.

It carries about 75 vehicles a day, roughly 7% of them trucks, projected to reach 104 by 2043. The structure is 72 ft (21.9 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesS-12-36
CrossesLittle Rock CR
Location10.5 SE Chester
RouteState Highway 36
Coordinates34.59278, -81.09056
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating32.2 US tons
Inventory rating0.4 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, precast panels
Main spans1 (+3 approach)
Design loadH 10
Structure length72 ft (21.9 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic104 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-12-36 over Little Rock CR built?

It was built in 1954, making it 71 years old in 2025.

What condition is S-12-36 over Little Rock CR 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 February 2024.

How much traffic does S-12-36 over Little Rock CR carry?

About 75 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is S-12-36 over Little Rock CR?

The structure is 72 ft (21.9 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns S-12-36 over Little Rock CR?

It is owned by the State Highway Agency.