US Bridges

US 29 SB over North Tyger River

Good

Spartanburg County, South Carolina · 6 MI W of Spartanburg · Structure no. 000000000010339

Built
2021
4 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
195 ft
3 main spans
Daily traffic
14,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 29 SB over North Tyger River is a prestressed concrete stringer/multi-beam or girder carrying US 29 SB over North Tyger River in Spartanburg County, South Carolina. It was built in 2021, so it is 4 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,600 vehicles a day, roughly 5% of them trucks, projected to reach 29,054 by 2043. The structure is 195 ft (59.4 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 29 SB
CrossesNorth Tyger River
Location6 MI W of Spartanburg
RouteU.S. Route 29
Coordinates34.93974, -82.0544
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
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 evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length195 ft (59.4 m)
Longest span74 ft (22.6 m)
Deck width49 ft (14.8 m)
Roadway width45 ft (13.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,600 (2023)
Projected traffic29,054 by 2043
Trucks5%
Lanes on structure2
Traffic directionOne-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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 29 SB over North Tyger River built?

It was built in 2021, making it 4 years old in 2025.

What condition is US 29 SB over North Tyger River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does US 29 SB over North Tyger River carry?

About 14,600 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 29 SB over North Tyger River?

The structure is 195 ft (59.4 m) long with a longest span of 74 ft (22.6 m) and a deck 49 ft wide.

Who owns US 29 SB over North Tyger River?

It is owned by the State Highway Agency.