US Bridges

Sc 4 over Great Branch

Fair

Orangeburg County, South Carolina · 6MI W of Orangeburg · Structure no. 000000000000957

Built
1939
86 years old, rebuilt 1975
Condition
Fair
inspected November 2023
Type
Tee Beam
Concrete
Length
88 ft
4 main spans
Daily traffic
5,600
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 4 over Great Branch is a concrete tee beam carrying Sc 4 over Great Branch in Orangeburg County, South Carolina. It was built in 1939 and reconstructed in 1975, so it is 86 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 5,600 vehicles a day, roughly 23% of them trucks, projected to reach 8,904 by 2043. The structure is 88 ft (26.8 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSc 4
CrossesGreat Branch
Location6MI W of Orangeburg
RouteState Highway 4
CountyOrangeburg County
StateSouth Carolina
Coordinates33.51308, -80.96634
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating21.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span22 ft (6.7 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2023)
Projected traffic8,904 by 2043
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$83,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 4 over Great Branch built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1975.

What condition is Sc 4 over Great 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 November 2023.

How much traffic does Sc 4 over Great Branch carry?

About 5,600 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is Sc 4 over Great Branch?

The structure is 88 ft (26.8 m) long with a longest span of 22 ft (6.7 m) and a deck 47 ft wide.

Who owns Sc 4 over Great Branch?

It is owned by the State Highway Agency.