US Bridges

US 29 over NS

Poor

Spartanburg County, South Carolina · 5.5 MI NE Spartanburg · Structure no. 000000000000980

Built
1939
86 years old, rebuilt 1972
Condition
Poor
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
225 ft
3 main spans
Daily traffic
12,200
2023 count
Owner
State
State Highway Agency

About this bridge

US 29 over NS is a steel stringer/multi-beam or girder carrying US 29 over NS in Spartanburg County, South Carolina. It was built in 1939 and reconstructed in 1972, so it is 86 years old, older than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 12,200 vehicles a day, roughly 5% of them trucks, projected to reach 24,278 by 2043. The structure is 225 ft (68.7 m) long and 76 ft wide.

CarriesUS 29
CrossesNS
Location5.5 MI NE Spartanburg
RouteU.S. Route 29
Coordinates34.98994, -81.85143
Functional classUrban Other Principal Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.5 US tons
Inventory rating30.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length225 ft (68.7 m)
Longest span96 ft (29.3 m)
Deck width76 ft (23.3 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,200 (2023)
Projected traffic24,278 by 2043
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$421,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 29 over NS built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1972.

What condition is US 29 over NS in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2025.

How much traffic does US 29 over NS carry?

About 12,200 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 29 over NS?

The structure is 225 ft (68.7 m) long with a longest span of 96 ft (29.3 m) and a deck 76 ft wide.

Who owns US 29 over NS?

It is owned by the State Highway Agency.