US Bridges

Sc 905 over Todd Swamp

Good

Horry County, South Carolina · 10.5MI S of Loris · Structure no. 000000000001250

Built
1942
83 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
7,200
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 905 over Todd Swamp is a concrete continuous culvert carrying Sc 905 over Todd Swamp in Horry County, South Carolina. It was built in 1942, so it is 83 years old, older 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 7,200 vehicles a day, roughly 8% of them trucks, projected to reach 10,512 by 2043. The structure is 21 ft (6.4 m) long and 44 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSc 905
CrossesTodd Swamp
Location10.5MI S of Loris
RouteState Highway 905
Coordinates33.90969, -78.82402
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating30.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width44 ft (13.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,200 (2023)
Projected traffic10,512 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Sc 905 over Todd Swamp built?

It was built in 1942, making it 83 years old in 2025.

What condition is Sc 905 over Todd 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 November 2024.

How much traffic does Sc 905 over Todd Swamp carry?

About 7,200 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Sc 905 over Todd Swamp?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 44 ft wide.

Who owns Sc 905 over Todd Swamp?

It is owned by the State Highway Agency.