US Bridges

Sc 31 Nbl over Wetland

Good

Horry County, South Carolina · 3 MI N Myrtle Beach · Structure no. 000000000010265

Built
2016
9 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
60 ft
2 main spans
Daily traffic
11,650
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 31 Nbl over Wetland is a concrete continuous slab carrying Sc 31 Nbl over Wetland in Horry County, South Carolina. It was built in 2016, so it is 9 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 11,650 vehicles a day, roughly 7% of them trucks, projected to reach 33,669 by 2043. The structure is 60 ft (18.3 m) long and 63 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSc 31 Nbl
CrossesWetland
Location3 MI N Myrtle Beach
RouteState Highway 31
Coordinates33.65964, -79.02808
Functional classRural Minor Arterial

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating47.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width63 ft (19.1 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,650 (2023)
Projected traffic33,669 by 2043
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 Sc 31 Nbl over Wetland built?

It was built in 2016, making it 9 years old in 2025.

What condition is Sc 31 Nbl over Wetland 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 November 2023.

How much traffic does Sc 31 Nbl over Wetland carry?

About 11,650 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Sc 31 Nbl over Wetland?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 63 ft wide.

Who owns Sc 31 Nbl over Wetland?

It is owned by the State Highway Agency.