US Bridges

S-26-31 over Br of Simpson Ck

Good

Horry County, South Carolina · 6 MI S Loris · Structure no. 000000000008007

Built
1986
39 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete
Length
30 ft
2 main spans
Daily traffic
5,200
2023 count
Owner
State
State Highway Agency

About this bridge

S-26-31 over Br of Simpson Ck is a concrete slab carrying S-26-31 over Br of Simpson Ck in Horry County, South Carolina. It was built in 1986, so it is 39 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.

It carries about 5,200 vehicles a day, roughly 4% of them trucks, projected to reach 7,592 by 2043. The structure is 30 ft (9.1 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesS-26-31
CrossesBr of Simpson Ck
Location6 MI S Loris
RouteState Highway 31
Coordinates33.94648, -78.83827
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating25.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 15
Structure length30 ft (9.1 m)
Longest span15 ft (4.6 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,200 (2023)
Projected traffic7,592 by 2043
Trucks4%
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 statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$99,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-26-31 over Br of Simpson Ck built?

It was built in 1986, making it 39 years old in 2025.

What condition is S-26-31 over Br of Simpson Ck 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 August 2023.

How much traffic does S-26-31 over Br of Simpson Ck carry?

About 5,200 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is S-26-31 over Br of Simpson Ck?

The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 33 ft wide.

Who owns S-26-31 over Br of Simpson Ck?

It is owned by the State Highway Agency.