US Bridges

I85 over Duharts Creek

Fair

Gaston County, North Carolina · 0.1 Mi. N. Jct. NC279 · Structure no. 000000000710321

Built
1963
62 years old, rebuilt 1978
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
22 ft
1 main span
Daily traffic
129,000
2022 count
Owner
State
State Highway Agency

About this bridge

I85 over Duharts Creek is a concrete continuous culvert carrying I85 over Duharts Creek in Gaston County, North Carolina. It was built in 1963 and reconstructed in 1978, so it is 62 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 5 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 129,000 vehicles a day, roughly 16% of them trucks, projected to reach 258,000 by 2040. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI85
CrossesDuharts Creek
Location0.1 Mi. N. Jct. NC279
RouteInterstate 85
CountyGaston County
StateNorth Carolina
Coordinates35.26868, -81.14929
Functional classUrban 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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating52.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic129,000 (2022)
Projected traffic258,000 by 2040
Trucks16%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I85 over Duharts Creek built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1978.

What condition is I85 over Duharts Creek 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 August 2024.

How much traffic does I85 over Duharts Creek carry?

About 129,000 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is I85 over Duharts Creek?

The structure is 22 ft (6.7 m) long with a longest span of 8 ft (2.4 m).

Who owns I85 over Duharts Creek?

It is owned by the State Highway Agency.