US Bridges

US 378 Bus over Camp Branch

Fair

Florence County, South Carolina · 1MI NW of Lake City · Structure no. 000000000000863

Built
1938
87 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
5,400
2023 count
Owner
State
State Highway Agency

About this bridge

US 378 Bus over Camp Branch is a concrete culvert carrying US 378 Bus over Camp Branch in Florence County, South Carolina. It was built in 1938, so it is 87 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 5,400 vehicles a day, roughly 8% of them trucks, projected to reach 7,614 by 2043. The structure is 21 ft (6.4 m) long and 34 ft wide.

Location

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CarriesUS 378 Bus
CrossesCamp Branch
Location1MI NW of Lake City
RouteU.S. Route 378
CountyFlorence County
StateSouth Carolina
Coordinates33.87918, -79.77125
Functional classUrban Minor Arterial

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating25.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width34 ft (10.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,400 (2023)
Projected traffic7,614 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$206,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 378 Bus over Camp Branch built?

It was built in 1938, making it 87 years old in 2025.

What condition is US 378 Bus over Camp Branch 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 June 2023.

How much traffic does US 378 Bus over Camp Branch carry?

About 5,400 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US 378 Bus over Camp Branch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 34 ft wide.

Who owns US 378 Bus over Camp Branch?

It is owned by the State Highway Agency.