US Bridges

US17 over White Oak River

Fair

Onslow County, North Carolina · 0.9 Mi. N. JCT SR1331 · Structure no. 000000001330048

Built
1923
102 years old, rebuilt 1942
Condition
Fair
inspected April 2024
Type
Tee Beam
Concrete
Length
118 ft
3 main spans
Daily traffic
5,000
2021 count
Owner
State
State Highway Agency

About this bridge

US17 over White Oak River is a concrete tee beam carrying US17 over White Oak River in Onslow County, North Carolina. It was built in 1923 and reconstructed in 1942, so it is 102 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 5,000 vehicles a day, roughly 14% of them trucks, projected to reach 10,000 by 2040. The structure is 118 ft (35.9 m) long and 30 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS17
CrossesWhite Oak River
Location0.9 Mi. N. JCT SR1331
RouteU.S. Route 17
Coordinates34.89182, -77.23381
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.9 US tons
Inventory rating30 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length118 ft (35.9 m)
Longest span37 ft (11.2 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2021)
Projected traffic10,000 by 2040
Trucks14%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US17 over White Oak River built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 1942.

What condition is US17 over White Oak River 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 April 2024.

How much traffic does US17 over White Oak River carry?

About 5,000 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is US17 over White Oak River?

The structure is 118 ft (35.9 m) long with a longest span of 37 ft (11.2 m) and a deck 30 ft wide.

Who owns US17 over White Oak River?

It is owned by the State Highway Agency.