US Bridges

Sc 9 SB over S.C.L. Railroad

Fair

Marlboro County, South Carolina · 1MI E of Wallace · Structure no. 000000000000951

Built
1939
86 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
260 ft
6 main spans
Daily traffic
4,150
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 9 SB over S.C.L. Railroad is a steel stringer/multi-beam or girder carrying Sc 9 SB over S.C.L. Railroad in Marlboro County, South Carolina. It was built in 1939, so it is 86 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.

It carries about 4,150 vehicles a day, roughly 15% of them trucks, projected to reach 6,474 by 2043. The structure is 260 ft (79.2 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSc 9 SB
CrossesS.C.L. Railroad
Location1MI E of Wallace
RouteState Highway 9
CountyMarlboro County
StateSouth Carolina
Coordinates34.71911, -79.85343
Functional classUrban Other Principal Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating28.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadH 15
Structure length260 ft (79.2 m)
Longest span60 ft (18.3 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,150 (2023)
Projected traffic6,474 by 2043
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$785,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sc 9 SB over S.C.L. Railroad built?

It was built in 1939, making it 86 years old in 2025.

What condition is Sc 9 SB over S.C.L. Railroad 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 October 2023.

How much traffic does Sc 9 SB over S.C.L. Railroad carry?

About 4,150 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Sc 9 SB over S.C.L. Railroad?

The structure is 260 ft (79.2 m) long with a longest span of 60 ft (18.3 m) and a deck 29 ft wide.

Who owns Sc 9 SB over S.C.L. Railroad?

It is owned by the State Highway Agency.