US Bridges

Sc 418 over I-385

Fair

Greenville County, South Carolina · Fountain Inn · Structure no. 000000000002732

Built
1958
67 years old, rebuilt 2017
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
200 ft
4 main spans
Daily traffic
14,600
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 418 over I-385 is a prestressed concrete stringer/multi-beam or girder carrying Sc 418 over I-385 in Greenville County, South Carolina. It was built in 1958 and reconstructed in 2017, so it is 67 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 14,600 vehicles a day, roughly 6% of them trucks, projected to reach 18,542 by 2043. The structure is 200 ft (61 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSc 418
CrossesI-385
LocationFountain Inn
RouteState Highway 418
CountyGreenville County
StateSouth Carolina
Coordinates34.68001, -82.20297
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length200 ft (61 m)
Longest span50 ft (15.2 m)
Deck width30 ft (9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,600 (2023)
Projected traffic18,542 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$704,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sc 418 over I-385 built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2017.

What condition is Sc 418 over I-385 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 September 2024.

How much traffic does Sc 418 over I-385 carry?

About 14,600 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Sc 418 over I-385?

The structure is 200 ft (61 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.

Who owns Sc 418 over I-385?

It is owned by the State Highway Agency.