US Bridges

I-185 SB over I-85

Good

Greenville County, South Carolina · 5.0MI SW of Greenville · Structure no. 000000000008744

Built
1996
29 years old, rebuilt 2001
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
348 ft
4 main spans
Daily traffic
12,650
2023 count
Owner
State
State Highway Agency

About this bridge

I-185 SB over I-85 is a steel stringer/multi-beam or girder carrying I-185 SB over I-85 in Greenville County, South Carolina. It was built in 1996 and reconstructed in 2001, 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 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 12,650 vehicles a day, roughly 8% of them trucks, projected to reach 17,204 by 2043. The structure is 348 ft (106.2 m) long and 77 ft wide.

CarriesI-185 SB
CrossesI-85
Location5.0MI SW of Greenville
RouteInterstate 185
Coordinates34.78925, -82.44054
Functional classUrban Principal Arterial - Interstate

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 alignment8: Equal to present desirable criteria
Operating rating51.8 US tons
Inventory rating31.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length348 ft (106.2 m)
Longest span115 ft (35.1 m)
Deck width77 ft (23.6 m)
Roadway width74 ft (22.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,650 (2023)
Projected traffic17,204 by 2043
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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 I-185 SB over I-85 built?

It was built in 1996, making it 29 years old in 2025. It was reconstructed in 2001.

What condition is I-185 SB over I-85 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 I-185 SB over I-85 carry?

About 12,650 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is I-185 SB over I-85?

The structure is 348 ft (106.2 m) long with a longest span of 115 ft (35.1 m) and a deck 77 ft wide.

Who owns I-185 SB over I-85?

It is owned by the State Highway Agency.