US Bridges

Sc 45 over Wedboo Swamp

Fair

Berkeley County, South Carolina · 15.2MI NE Moncks Crn · Structure no. 000000000001345

Built
1947
78 years old, rebuilt 1973
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
39 ft
3 main spans
Daily traffic
750
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 45 over Wedboo Swamp is a concrete culvert carrying Sc 45 over Wedboo Swamp in Berkeley County, South Carolina. It was built in 1947 and reconstructed in 1973, so it is 78 years old, older than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 750 vehicles a day, roughly 24% of them trucks, projected to reach 1,095 by 2043. The structure is 39 ft (11.9 m) long and 82 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesSc 45
CrossesWedboo Swamp
Location15.2MI NE Moncks Crn
RouteState Highway 45
Coordinates33.3314, -79.80221
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating73.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length39 ft (11.9 m)
Longest span12 ft (3.7 m)
Deck width82 ft (25.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2023)
Projected traffic1,095 by 2043
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 45 over Wedboo Swamp built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1973.

What condition is Sc 45 over Wedboo Swamp in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Sc 45 over Wedboo Swamp carry?

About 750 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is Sc 45 over Wedboo Swamp?

The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.7 m) and a deck 82 ft wide.

Who owns Sc 45 over Wedboo Swamp?

It is owned by the State Highway Agency.