US Bridges

I40W over Swift Creek

Good

Johnston County, North Carolina · 1.0 Mi. W. of JCT.NC-42 · Structure no. 000000001010502

Built
2020
5 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
224 ft
2 main spans
Daily traffic
27,250
2020 count
Owner
State
State Highway Agency

About this bridge

I40W over Swift Creek is a prestressed concrete stringer/multi-beam or girder carrying I40W over Swift Creek in Johnston County, North Carolina. It was built in 2020, so it is 5 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 27,250 vehicles a day, roughly 16% of them trucks, projected to reach 54,500 by 2040. The structure is 224 ft (68.2 m) long and 102 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesI40W
CrossesSwift Creek
Location1.0 Mi. W. of JCT.NC-42
RouteInterstate 40
CountyJohnston County
StateNorth Carolina
Coordinates35.62201, -78.56684
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.9 US tons
Inventory rating61 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length224 ft (68.2 m)
Longest span124 ft (37.7 m)
Deck width102 ft (31.2 m)
Roadway width99 ft (30.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,250 (2020)
Projected traffic54,500 by 2040
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 I40W over Swift Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is I40W over Swift 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 February 2024.

How much traffic does I40W over Swift Creek carry?

About 27,250 vehicles per day (2020 count), of which roughly 16% are trucks.

How long is I40W over Swift Creek?

The structure is 224 ft (68.2 m) long with a longest span of 124 ft (37.7 m) and a deck 102 ft wide.

Who owns I40W over Swift Creek?

It is owned by the State Highway Agency.