US Bridges

NC403 over Whiteoak Branch

Good

Duplin County, North Carolina · 0.2 MI.N.JCT.SR1319 · Structure no. 000000000610046

Built
2009
16 years old
Condition
Good
inspected November 2023
Type
Slab
Prestressed Concrete
Length
87 ft
2 main spans
Daily traffic
2,200
2022 count
Owner
State
State Highway Agency

About this bridge

NC403 over Whiteoak Branch is a prestressed concrete slab carrying NC403 over Whiteoak Branch in Duplin County, North Carolina. It was built in 2009, so it is 16 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 2,200 vehicles a day, roughly 7% of them trucks, projected to reach 4,400 by 2040. The structure is 87 ft (26.5 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesNC403
CrossesWhiteoak Branch
Location0.2 MI.N.JCT.SR1319
RouteState Highway 403
CountyDuplin County
StateNorth Carolina
Coordinates35.13708, -78.07825
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: 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 rating99 US tons
Inventory rating60 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 25 or greater
Structure length87 ft (26.5 m)
Longest span54 ft (16.4 m)
Deck width39 ft (11.8 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2022)
Projected traffic4,400 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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 NC403 over Whiteoak Branch built?

It was built in 2009, making it 16 years old in 2025.

What condition is NC403 over Whiteoak Branch 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 November 2023.

How much traffic does NC403 over Whiteoak Branch carry?

About 2,200 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is NC403 over Whiteoak Branch?

The structure is 87 ft (26.5 m) long with a longest span of 54 ft (16.4 m) and a deck 39 ft wide.

Who owns NC403 over Whiteoak Branch?

It is owned by the State Highway Agency.