US Bridges

US 501 over US 501 Bus

Good

Marion County, South Carolina · 2MI S of Marion · Structure no. 000000000008189

Built
1988
37 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
342 ft
4 main spans
Daily traffic
10,000
2023 count
Owner
State
State Highway Agency

About this bridge

US 501 over US 501 Bus is a steel stringer/multi-beam or girder carrying US 501 over US 501 Bus in Marion County, South Carolina. It was built in 1988, so it is 37 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,000 vehicles a day, roughly 17% of them trucks, projected to reach 15,600 by 2043. The structure is 342 ft (104.2 m) long and 69 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 501
CrossesUS 501 Bus
Location2MI S of Marion
RouteU.S. Route 501
Coordinates34.14188, -79.37971
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82.9 US tons
Inventory rating63.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length342 ft (104.2 m)
Longest span120 ft (36.6 m)
Deck width69 ft (21.1 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2023)
Projected traffic15,600 by 2043
Trucks17%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 501 over US 501 Bus built?

It was built in 1988, making it 37 years old in 2025.

What condition is US 501 over US 501 Bus 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 July 2024.

How much traffic does US 501 over US 501 Bus carry?

About 10,000 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is US 501 over US 501 Bus?

The structure is 342 ft (104.2 m) long with a longest span of 120 ft (36.6 m) and a deck 69 ft wide.

Who owns US 501 over US 501 Bus?

It is owned by the State Highway Agency.