US Bridges

Sc 417 over South Tyger River

Fair

Spartanburg County, South Carolina · 10.5 MI SW Spartanburg · Structure no. 000000000006779

Built
1975
50 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
240 ft
3 main spans
Daily traffic
4,800
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 417 over South Tyger River is a prestressed concrete stringer/multi-beam or girder carrying Sc 417 over South Tyger River in Spartanburg County, South Carolina. It was built in 1975, so it is 50 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 4,800 vehicles a day, roughly 8% of them trucks, projected to reach 7,200 by 2043. The structure is 240 ft (73.2 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSc 417
CrossesSouth Tyger River
Location10.5 MI SW Spartanburg
RouteState Highway 417
CountySpartanburg County
StateSouth Carolina
Coordinates34.84878, -82.06686
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating4.3 US tons
Inventory rating2.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span60 ft (18.3 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,800 (2023)
Projected traffic7,200 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 417 over South Tyger River built?

It was built in 1975, making it 50 years old in 2025.

What condition is Sc 417 over South Tyger River 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 October 2024.

How much traffic does Sc 417 over South Tyger River carry?

About 4,800 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Sc 417 over South Tyger River?

The structure is 240 ft (73.2 m) long with a longest span of 60 ft (18.3 m) and a deck 43 ft wide.

Who owns Sc 417 over South Tyger River?

It is owned by the State Highway Agency.