US Bridges

Sc 101 over I-85

Fair

Spartanburg County, South Carolina · 3.0 MI S of Duncan · Structure no. 000000000009080

Built
1996
29 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
268 ft
2 main spans
Daily traffic
22,000
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 101 over I-85 is a steel continuous stringer/multi-beam or girder carrying Sc 101 over I-85 in Spartanburg County, South Carolina. It was built in 1996, so it is 29 years old, younger 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 22,000 vehicles a day, roughly 22% of them trucks, projected to reach 31,900 by 2043. The structure is 268 ft (81.7 m) long and 101 ft wide.

Location

Open in Google Maps
CarriesSc 101
CrossesI-85
Location3.0 MI S of Duncan
RouteState Highway 101
CountySpartanburg County
StateSouth Carolina
Coordinates34.89222, -82.15972
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length268 ft (81.7 m)
Longest span136 ft (41.5 m)
Deck width101 ft (30.9 m)
Roadway width89 ft (27.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,000 (2023)
Projected traffic31,900 by 2043
Trucks22%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sc 101 over I-85 built?

It was built in 1996, making it 29 years old in 2025.

What condition is Sc 101 over I-85 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 October 2023.

How much traffic does Sc 101 over I-85 carry?

About 22,000 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is Sc 101 over I-85?

The structure is 268 ft (81.7 m) long with a longest span of 136 ft (41.5 m) and a deck 101 ft wide.

Who owns Sc 101 over I-85?

It is owned by the State Highway Agency.