US Bridges

Sc 129 over North Tyger River

Fair

Spartanburg County, South Carolina · 1.0 MI N of Wellford · Structure no. 000000000001898

Built
1952
73 years old
Condition
Fair
inspected January 2024
Type
Tee Beam
Concrete
Length
150 ft
5 main spans
Daily traffic
10,300
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 129 over North Tyger River is a concrete tee beam carrying Sc 129 over North Tyger River in Spartanburg County, South Carolina. It was built in 1952, so it is 73 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 5 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 10,300 vehicles a day, roughly 12% of them trucks, projected to reach 14,935 by 2043. The structure is 150 ft (45.7 m) long and 36 ft wide.

CarriesSc 129
CrossesNorth Tyger River
Location1.0 MI N of Wellford
RouteState Highway 129
Coordinates34.96765, -82.10312
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span30 ft (9.1 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,300 (2023)
Projected traffic14,935 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$515,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sc 129 over North Tyger River built?

It was built in 1952, making it 73 years old in 2025.

What condition is Sc 129 over North 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 Sc 129 over North Tyger River carry?

About 10,300 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Sc 129 over North Tyger River?

The structure is 150 ft (45.7 m) long with a longest span of 30 ft (9.1 m) and a deck 36 ft wide.

Who owns Sc 129 over North Tyger River?

It is owned by the State Highway Agency.