US Bridges

S-26-366 over Simpson Creek

FairPosted for load

Horry County, South Carolina · 6MI S Loris · Structure no. 000000000003905

Built
1962
63 years old, rebuilt 1993
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
90 ft
6 main spans
Daily traffic
500
2023 count
Owner
State
State Highway Agency

About this bridge

S-26-366 over Simpson Creek is a concrete slab carrying S-26-366 over Simpson Creek in Horry County, South Carolina. It was built in 1962 and reconstructed in 1993, so it is 63 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 500 vehicles a day, roughly 7% of them trucks, projected to reach 730 by 2043. The structure is 90 ft (27.4 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesS-26-366
CrossesSimpson Creek
Location6MI S Loris
RouteState Highway 366
CountyHorry County
StateSouth Carolina
Coordinates33.95904, -78.83337
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be 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 rating29.3 US tons
Inventory rating17.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadH 10
Structure length90 ft (27.4 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2023)
Projected traffic730 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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-26-366 over Simpson Creek built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1993.

What condition is S-26-366 over Simpson 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 August 2023.

How much traffic does S-26-366 over Simpson Creek carry?

About 500 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is S-26-366 over Simpson Creek?

The structure is 90 ft (27.4 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns S-26-366 over Simpson Creek?

It is owned by the State Highway Agency.