US Bridges

I85BUS US29 52 70 over North Potts Creek

Fair

Davidson County, North Carolina · 0.7 Mi. S. Jct. SR1224 · Structure no. 000000000570127

Built
1978
47 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
42 ft
4 main spans
Daily traffic
45,500
2020 count
Owner
State
State Highway Agency

About this bridge

I85BUS US29 52 70 over North Potts Creek is a concrete continuous culvert carrying I85BUS US29 52 70 over North Potts Creek in Davidson County, North Carolina. It was built in 1978, so it is 47 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 45,500 vehicles a day, roughly 16% of them trucks, projected to reach 91,000 by 2040. The structure is 42 ft (12.8 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI85BUS US29 52 70
CrossesNorth Potts Creek
Location0.7 Mi. S. Jct. SR1224
RouteInterstate 85
Coordinates35.77104, -80.32636
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 inspectionMarch 2023
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 rating46 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length42 ft (12.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,500 (2020)
Projected traffic91,000 by 2040
Trucks16%
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 I85BUS US29 52 70 over North Potts Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is I85BUS US29 52 70 over North Potts 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 March 2023.

How much traffic does I85BUS US29 52 70 over North Potts Creek carry?

About 45,500 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I85BUS US29 52 70 over North Potts Creek?

The structure is 42 ft (12.8 m) long with a longest span of 10 ft (3 m).

Who owns I85BUS US29 52 70 over North Potts Creek?

It is owned by the State Highway Agency.