US Bridges

US 29 over South Tyger River

Fair

Spartanburg County, South Carolina · 2.8 MI E Greer · Structure no. 000000000001271

Built
1942
83 years old, rebuilt 1985
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
270 ft
1 main span
Daily traffic
27,000
2023 count
Owner
State
State Highway Agency

About this bridge

US 29 over South Tyger River is a prestressed concrete stringer/multi-beam or girder carrying US 29 over South Tyger River in Spartanburg County, South Carolina. It was built in 1942 and reconstructed in 1985, so it is 83 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 27,000 vehicles a day, roughly 5% of them trucks, projected to reach 39,150 by 2043. The structure is 270 ft (82.3 m) long and 84 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 29
CrossesSouth Tyger River
Location2.8 MI E Greer
RouteU.S. Route 29
Coordinates34.95141, -82.18556
Functional classUrban Other Principal 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating40.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+7 approach)
Design loadHS 20
Structure length270 ft (82.3 m)
Longest span60 ft (18.3 m)
Deck width84 ft (25.6 m)
Roadway width80 ft (24.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,000 (2023)
Projected traffic39,150 by 2043
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 29 over South Tyger River built?

It was built in 1942, making it 83 years old in 2025. It was reconstructed in 1985.

What condition is US 29 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 January 2024.

How much traffic does US 29 over South Tyger River carry?

About 27,000 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 29 over South Tyger River?

The structure is 270 ft (82.3 m) long with a longest span of 60 ft (18.3 m) and a deck 84 ft wide.

Who owns US 29 over South Tyger River?

It is owned by the State Highway Agency.