US Bridges

S-26-669 over Maple Swamp

Good

Horry County, South Carolina · 7 MI N of Conway · Structure no. 000000000010582

Built
2023
2 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
175
2023 count
Owner
State
State Highway Agency

About this bridge

S-26-669 over Maple Swamp is a concrete continuous slab carrying S-26-669 over Maple Swamp in Horry County, South Carolina. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 175 vehicles a day, roughly 5% of them trucks, projected to reach 224 by 2043. The structure is 110 ft (33.5 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS-26-669
CrossesMaple Swamp
Location7 MI N of Conway
RouteState Highway 669
Coordinates33.95434, -79.04028
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length110 ft (33.5 m)
Longest span40 ft (12.2 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2023)
Projected traffic224 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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-26-669 over Maple Swamp built?

It was built in 2023, making it 2 years old in 2025.

What condition is S-26-669 over Maple Swamp 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-26-669 over Maple Swamp carry?

About 175 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-26-669 over Maple Swamp?

The structure is 110 ft (33.5 m) long with a longest span of 40 ft (12.2 m) and a deck 30 ft wide.

Who owns S-26-669 over Maple Swamp?

It is owned by the State Highway Agency.