US Bridges

Sc 72 over Allisons Branch

Fair

Laurens County, South Carolina · 12.6 MI E of Laurens · Structure no. 000000000001083

Built
1940
85 years old, rebuilt 1955
Condition
Fair
inspected May 2024
Type
Arch - Deck
Concrete
Length
26 ft
2 main spans
Daily traffic
2,500
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 72 over Allisons Branch is a concrete arch - deck carrying Sc 72 over Allisons Branch in Laurens County, South Carolina. It was built in 1940 and reconstructed in 1955, so it is 85 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 5 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 2,500 vehicles a day, roughly 22% of them trucks, projected to reach 4,350 by 2043. The structure is 26 ft (7.9 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSc 72
CrossesAllisons Branch
Location12.6 MI E of Laurens
RouteState Highway 72
CountyLaurens County
StateSouth Carolina
Coordinates34.49729, -81.79426
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating33.6 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length26 ft (7.9 m)
Longest span13 ft (4 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2023)
Projected traffic4,350 by 2043
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 72 over Allisons Branch built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1955.

What condition is Sc 72 over Allisons 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 May 2024.

How much traffic does Sc 72 over Allisons Branch carry?

About 2,500 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is Sc 72 over Allisons Branch?

The structure is 26 ft (7.9 m) long with a longest span of 13 ft (4 m) and a deck 34 ft wide.

Who owns Sc 72 over Allisons Branch?

It is owned by the State Highway Agency.