US Bridges

Sc 9 Nbl over Buck Swamp Branch

Fair

Horry County, South Carolina · 7.5 MI SE of Loris · Structure no. 000000000007804

Built
1984
41 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete
Length
60 ft
2 main spans
Daily traffic
9,500
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 9 Nbl over Buck Swamp Branch is a concrete slab carrying Sc 9 Nbl over Buck Swamp Branch in Horry County, South Carolina. It was built in 1984, so it is 41 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 9,500 vehicles a day, roughly 8% of them trucks, projected to reach 16,530 by 2024. The structure is 60 ft (18.3 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSc 9 Nbl
CrossesBuck Swamp Branch
Location7.5 MI SE of Loris
RouteState Highway 9
CountyHorry County
StateSouth Carolina
Coordinates34.0125, -78.77806
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating46.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width43 ft (13.2 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,500 (2023)
Projected traffic16,530 by 2024
Trucks8%
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 Nbl over Buck Swamp Branch built?

It was built in 1984, making it 41 years old in 2025.

What condition is Sc 9 Nbl over Buck Swamp 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 November 2024.

How much traffic does Sc 9 Nbl over Buck Swamp Branch carry?

About 9,500 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Sc 9 Nbl over Buck Swamp Branch?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 43 ft wide.

Who owns Sc 9 Nbl over Buck Swamp Branch?

It is owned by the State Highway Agency.