US Bridges

Sc 59 over NS RR

Fair

Oconee County, South Carolina · Town of Seneca · Structure no. 000000000001108

Built
1940
85 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
165 ft
3 main spans
Daily traffic
8,600
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 59 over NS RR is a steel continuous stringer/multi-beam or girder carrying Sc 59 over NS RR in Oconee County, South Carolina. It was built in 1940, 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 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 8,600 vehicles a day, roughly 6% of them trucks, projected to reach 12,126 by 2043. The structure is 165 ft (50.3 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSc 59
CrossesNS RR
LocationTown of Seneca
RouteState Highway 59
Coordinates34.68397, -82.95633
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating28.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length165 ft (50.3 m)
Longest span65 ft (19.8 m)
Deck width41 ft (12.6 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,600 (2023)
Projected traffic12,126 by 2043
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$372,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sc 59 over NS RR built?

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

What condition is Sc 59 over NS RR 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 NS RR carry?

About 8,600 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Sc 59 over NS RR?

The structure is 165 ft (50.3 m) long with a longest span of 65 ft (19.8 m) and a deck 41 ft wide.

Who owns Sc 59 over NS RR?

It is owned by the State Highway Agency.