US Bridges

C-26-686 over Br of Bug Swamp

GoodPosted for load

Horry County, South Carolina · 7.5 MI SW of Loris · Structure no. 000000000007903

Built
2003
22 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
28 ft
2 main spans
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

C-26-686 over Br of Bug Swamp is a concrete slab carrying C-26-686 over Br of Bug Swamp in Horry County, South Carolina. It was built in 2003, so it is 22 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 250 vehicles a day, roughly 5% of them trucks, projected to reach 320 by 2043. The structure is 28 ft (8.5 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesC-26-686
CrossesBr of Bug Swamp
Location7.5 MI SW of Loris
RouteCounty Highway 686
Coordinates33.98528, -78.99056
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
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 alignment8: Equal to present desirable criteria
Operating rating31.4 US tons
Inventory rating18.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 10
Structure length28 ft (8.5 m)
Longest span14 ft (4.3 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2023)
Projected traffic320 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 C-26-686 over Br of Bug Swamp built?

It was built in 2003, making it 22 years old in 2025.

What condition is C-26-686 over Br of Bug Swamp in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does C-26-686 over Br of Bug Swamp carry?

About 250 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is C-26-686 over Br of Bug Swamp?

The structure is 28 ft (8.5 m) long with a longest span of 14 ft (4.3 m) and a deck 26 ft wide.

Who owns C-26-686 over Br of Bug Swamp?

It is owned by the County Highway Agency.