US Bridges

Sc 61/AUGUSTA HWY over Skull Branch

Fair

Colleton County, South Carolina · 12 MI NE of Walterboro · Structure no. 000000000000407

Built
1930
95 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
2,700
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 61/AUGUSTA HWY over Skull Branch is a concrete culvert carrying Sc 61/AUGUSTA HWY over Skull Branch in Colleton County, South Carolina. It was built in 1930, so it is 95 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 2,700 vehicles a day, roughly 16% of them trucks, projected to reach 4,293 by 2043. The structure is 34 ft (10.4 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesSc 61/AUGUSTA HWY
CrossesSkull Branch
Location12 MI NE of Walterboro
RouteState Highway 61
CountyColleton County
StateSouth Carolina
Coordinates33.04681, -80.54012
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
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 typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2023)
Projected traffic4,293 by 2043
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$73,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 61/AUGUSTA HWY over Skull Branch built?

It was built in 1930, making it 95 years old in 2025.

What condition is Sc 61/AUGUSTA HWY over Skull 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 February 2024.

How much traffic does Sc 61/AUGUSTA HWY over Skull Branch carry?

About 2,700 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Sc 61/AUGUSTA HWY over Skull Branch?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 32 ft wide.

Who owns Sc 61/AUGUSTA HWY over Skull Branch?

It is owned by the State Highway Agency.