US Bridges

I85 over Catawba River

Fair

Gaston County, North Carolina · 0.75 Mi. N. Jct. NC273 · Structure no. 000000000710159

Built
1958
67 years old, rebuilt 1988
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,073 ft
11 main spans
Daily traffic
127,000
2020 count
Owner
State
State Highway Agency

About this bridge

I85 over Catawba River is a steel continuous stringer/multi-beam or girder carrying I85 over Catawba River in Gaston County, North Carolina. It was built in 1958 and reconstructed in 1988, so it is 67 years old, older than the North Carolina average of 38.7 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 127,000 vehicles a day, roughly 23% of them trucks, projected to reach 254,000 by 2040. The structure is 1,073 ft (327 m) long and 151 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI85
CrossesCatawba River
Location0.75 Mi. N. Jct. NC273
RouteInterstate 85
Coordinates35.25768, -81.01382
Functional classRural Principal Arterial - Interstate

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.9 US tons
Inventory rating39.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans11 (+7 approach)
Design loadHS 20 + Mod
Structure length1,073 ft (327 m)
Longest span158 ft (48.1 m)
Deck width151 ft (46.1 m)
Roadway width144 ft (43.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic127,000 (2020)
Projected traffic254,000 by 2040
Trucks23%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 I85 over Catawba River built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1988.

What condition is I85 over Catawba River 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 May 2024.

How much traffic does I85 over Catawba River carry?

About 127,000 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is I85 over Catawba River?

The structure is 1,073 ft (327 m) long with a longest span of 158 ft (48.1 m) and a deck 151 ft wide.

Who owns I85 over Catawba River?

It is owned by the State Highway Agency.