US Bridges

I-85 NB over Broad River

Good

Cherokee County, South Carolina · 7.3 MI NE of Gaffney · Structure no. 000000000002672

Built
2004
21 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
658 ft
5 main spans
Daily traffic
59,200
2023 count
Owner
State
State Highway Agency

About this bridge

I-85 NB over Broad River is a steel continuous stringer/multi-beam or girder carrying I-85 NB over Broad River in Cherokee County, South Carolina. It was built in 2004, so it is 21 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 59,200 vehicles a day, roughly 25% of them trucks, projected to reach 103,600 by 2043. The structure is 658 ft (200.7 m) long and 107 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesI-85 NB
CrossesBroad River
Location7.3 MI NE of Gaffney
RouteInterstate 85
Coordinates35.11778, -81.57639
Functional classRural 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.1 US tons
Inventory rating32.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length658 ft (200.7 m)
Longest span155 ft (47.2 m)
Deck width107 ft (32.6 m)
Roadway width104 ft (31.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59,200 (2023)
Projected traffic103,600 by 2043
Trucks25%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-85 NB over Broad River built?

It was built in 2004, making it 21 years old in 2025.

What condition is I-85 NB over Broad River 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 January 2024.

How much traffic does I-85 NB over Broad River carry?

About 59,200 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is I-85 NB over Broad River?

The structure is 658 ft (200.7 m) long with a longest span of 155 ft (47.2 m) and a deck 107 ft wide.

Who owns I-85 NB over Broad River?

It is owned by the State Highway Agency.