US Bridges

Sc 9 SB over Catawba River

Fair

Lancaster County, South Carolina · Chester CO Line · Structure no. 000000000000431

Built
2017
8 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,425 ft
3 main spans
Daily traffic
6,250
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 9 SB over Catawba River is a prestressed concrete stringer/multi-beam or girder carrying Sc 9 SB over Catawba River in Lancaster County, South Carolina. It was built in 2017, so it is 8 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 6,250 vehicles a day, roughly 11% of them trucks, projected to reach 10,875 by 2043. The structure is 1,425 ft (434.2 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSc 9 SB
CrossesCatawba River
LocationChester CO Line
RouteState Highway 9
CountyLancaster County
StateSouth Carolina
Coordinates34.70869, -80.86637
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating25.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3 (+8 approach)
Design loadHL 93
Structure length1,425 ft (434.2 m)
Longest span170 ft (51.8 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,250 (2023)
Projected traffic10,875 by 2043
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 9 SB over Catawba River built?

It was built in 2017, making it 8 years old in 2025.

What condition is Sc 9 SB over Catawba River 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 August 2024.

How much traffic does Sc 9 SB over Catawba River carry?

About 6,250 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Sc 9 SB over Catawba River?

The structure is 1,425 ft (434.2 m) long with a longest span of 170 ft (51.8 m) and a deck 47 ft wide.

Who owns Sc 9 SB over Catawba River?

It is owned by the State Highway Agency.