US Bridges

Sc 31 Nbl Ramp over Sc 31 & Sc 22

Good

Horry County, South Carolina · 6 MI N of Myrtle Beach · Structure no. 000000000010014

Built
2002
23 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
1,285 ft
11 main spans
Daily traffic
6,342
2017 count
Owner
State
State Highway Agency

About this bridge

Sc 31 Nbl Ramp over Sc 31 & Sc 22 is a prestressed concrete continuous stringer/multi-beam or girder carrying Sc 31 Nbl Ramp over Sc 31 & Sc 22 in Horry County, South Carolina. It was built in 2002, so it is 23 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 6,342 vehicles a day, projected to reach 9,450 by 2037. The structure is 1,285 ft (391.7 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSc 31 Nbl Ramp
CrossesSc 31 & Sc 22
Location6 MI N of Myrtle Beach
RouteState Highway 31
Coordinates33.81142, -78.78111
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.5 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans11
Design loadHS 25 or greater
Structure length1,285 ft (391.7 m)
Longest span136 ft (41.5 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,342 (2017)
Projected traffic9,450 by 2037
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sc 31 Nbl Ramp over Sc 31 & Sc 22 built?

It was built in 2002, making it 23 years old in 2025.

What condition is Sc 31 Nbl Ramp over Sc 31 & Sc 22 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 October 2024.

How much traffic does Sc 31 Nbl Ramp over Sc 31 & Sc 22 carry?

About 6,342 vehicles per day (2017 count).

How long is Sc 31 Nbl Ramp over Sc 31 & Sc 22?

The structure is 1,285 ft (391.7 m) long with a longest span of 136 ft (41.5 m) and a deck 29 ft wide.

Who owns Sc 31 Nbl Ramp over Sc 31 & Sc 22?

It is owned by the State Highway Agency.