US Bridges

C-26-638 Long Bay over Sc 31

Good

Horry County, South Carolina · 5.5 MI W N Myrtle Beach · Structure no. 000000000009802

Built
2002
23 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
217 ft
2 main spans
Daily traffic
250
2023 count
Owner
County
County Highway Agency

About this bridge

C-26-638 Long Bay over Sc 31 is a prestressed concrete continuous stringer/multi-beam or girder carrying C-26-638 Long Bay over Sc 31 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 250 vehicles a day, roughly 5% of them trucks, projected to reach 320 by 2043. The structure is 217 ft (66 m) long and 39 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesC-26-638 Long Bay
CrossesSc 31
Location5.5 MI W N Myrtle Beach
RouteCounty Highway 638
Coordinates33.81744, -78.74054
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 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 rating47.2 US tons
Inventory rating36.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length217 ft (66 m)
Longest span108 ft (33 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 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
CrossesHighway
Detour if closed123.7 mi (199 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was C-26-638 Long Bay over Sc 31 built?

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

What condition is C-26-638 Long Bay over Sc 31 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 2024.

How much traffic does C-26-638 Long Bay over Sc 31 carry?

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

How long is C-26-638 Long Bay over Sc 31?

The structure is 217 ft (66 m) long with a longest span of 108 ft (33 m) and a deck 39 ft wide.

Who owns C-26-638 Long Bay over Sc 31?

It is owned by the County Highway Agency.