US Bridges

Sc 59 over Holleman Branch

Fair

Oconee County, South Carolina · 2.5 MI S of Seneca · Structure no. 000000000000818

Built
1937
88 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
8,700
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 59 over Holleman Branch is a concrete culvert carrying Sc 59 over Holleman Branch in Oconee County, South Carolina. It was built in 1937, so it is 88 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 8,700 vehicles a day, roughly 6% of them trucks, projected to reach 13,833 by 2043. The structure is 23 ft (7 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSc 59
CrossesHolleman Branch
Location2.5 MI S of Seneca
RouteState Highway 59
Coordinates34.64641, -82.96494
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating27.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width40 ft (12.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,700 (2023)
Projected traffic13,833 by 2043
Trucks6%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 59 over Holleman Branch built?

It was built in 1937, making it 88 years old in 2025.

What condition is Sc 59 over Holleman 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 59 over Holleman Branch carry?

About 8,700 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Sc 59 over Holleman Branch?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 40 ft wide.

Who owns Sc 59 over Holleman Branch?

It is owned by the State Highway Agency.