US Bridges

I85N.BUS/US29&70 over Swearing Creek

Good

Davidson County, North Carolina · 0.6 Mi. N. Jct. SR1297 · Structure no. 000000000570043

Built
2016
9 years old
Condition
Good
inspected January 2024
Type
Slab
Prestressed Concrete
Length
116 ft
3 main spans
Daily traffic
14,750
2020 count
Owner
State
State Highway Agency

About this bridge

I85N.BUS/US29&70 over Swearing Creek is a prestressed concrete slab carrying I85N.BUS/US29&70 over Swearing Creek in Davidson County, North Carolina. It was built in 2016, so it is 9 years old, younger than the North Carolina average of 38.7 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 14,750 vehicles a day, roughly 16% of them trucks, projected to reach 29,500 by 2040. The structure is 116 ft (35.3 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesI85N.BUS/US29&70
CrossesSwearing Creek
Location0.6 Mi. N. Jct. SR1297
RouteInterstate 85
Coordinates35.79452, -80.29623
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.
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating53.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length116 ft (35.3 m)
Longest span36 ft (10.9 m)
Deck width42 ft (12.8 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,750 (2020)
Projected traffic29,500 by 2040
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 I85N.BUS/US29&70 over Swearing Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is I85N.BUS/US29&70 over Swearing Creek 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 I85N.BUS/US29&70 over Swearing Creek carry?

About 14,750 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I85N.BUS/US29&70 over Swearing Creek?

The structure is 116 ft (35.3 m) long with a longest span of 36 ft (10.9 m) and a deck 42 ft wide.

Who owns I85N.BUS/US29&70 over Swearing Creek?

It is owned by the State Highway Agency.