US Bridges

US 29 over Southern Railroad

Fair

Spartanburg County, South Carolina · 1.0 MI E of Spartanburg · Structure no. 000000000001134

Built
1940
85 years old, rebuilt 1970
Condition
Fair
inspected December 2023
Type
Slab
Concrete
Length
102 ft
1 main span
Daily traffic
26,100
2023 count
Owner
State
State Highway Agency

About this bridge

US 29 over Southern Railroad is a concrete slab carrying US 29 over Southern Railroad in Spartanburg County, South Carolina. It was built in 1940 and reconstructed in 1970, so it is 85 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 26,100 vehicles a day, roughly 2% of them trucks, projected to reach 51,939 by 2043. The structure is 102 ft (31.1 m) long and 76 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 29
CrossesSouthern Railroad
Location1.0 MI E of Spartanburg
RouteU.S. Route 29
CountySpartanburg County
StateSouth Carolina
Coordinates34.9589, -81.90847
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating43.5 US tons
Inventory rating26.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 15
Structure length102 ft (31.1 m)
Longest span36 ft (11 m)
Deck width76 ft (23.3 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,100 (2023)
Projected traffic51,939 by 2043
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 29 over Southern Railroad built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1970.

What condition is US 29 over Southern Railroad 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 December 2023.

How much traffic does US 29 over Southern Railroad carry?

About 26,100 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is US 29 over Southern Railroad?

The structure is 102 ft (31.1 m) long with a longest span of 36 ft (11 m) and a deck 76 ft wide.

Who owns US 29 over Southern Railroad?

It is owned by the State Highway Agency.