US Bridges

S-24-42 over Ninety-Six Creek

Fair

Greenwood County, South Carolina · 4.8MI SE Ninety-Six · Structure no. 000000000005748

Built
1970
55 years old
Condition
Fair
inspected March 2023
Type
Channel Beam
Prestressed Concrete
Length
300 ft
10 main spans
Daily traffic
800
2023 count
Owner
State
State Highway Agency

About this bridge

S-24-42 over Ninety-Six Creek is a prestressed concrete channel beam carrying S-24-42 over Ninety-Six Creek in Greenwood County, South Carolina. It was built in 1970, so it is 55 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 800 vehicles a day, roughly 8% of them trucks, projected to reach 1,168 by 2043. The structure is 300 ft (91.4 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesS-24-42
CrossesNinety-Six Creek
Location4.8MI SE Ninety-Six
RouteState Highway 42
Coordinates34.15727, -81.94367
Functional classRural Major 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.1 US tons
Inventory rating21.4 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans10
Design loadH 15
Structure length300 ft (91.4 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2023)
Projected traffic1,168 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-24-42 over Ninety-Six Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is S-24-42 over Ninety-Six Creek 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 March 2023.

How much traffic does S-24-42 over Ninety-Six Creek carry?

About 800 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is S-24-42 over Ninety-Six Creek?

The structure is 300 ft (91.4 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns S-24-42 over Ninety-Six Creek?

It is owned by the State Highway Agency.