US Bridges

US17N.BYP over SR1403

Good

Onslow County, North Carolina · 0.5 Miles South of US17 · Structure no. 000000001330280

Built
2006
19 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
177 ft
1 main span
Daily traffic
13,250
2022 count
Owner
State
State Highway Agency

About this bridge

US17N.BYP over SR1403 is a steel stringer/multi-beam or girder carrying US17N.BYP over SR1403 in Onslow County, North Carolina. It was built in 2006, so it is 19 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,250 vehicles a day, roughly 12% of them trucks, projected to reach 26,500 by 2040. The structure is 177 ft (53.9 m) long and 46 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS17N.BYP
CrossesSR1403
Location0.5 Miles South of US17
RouteU.S. Route 17
Coordinates34.76856, -77.3962
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating80.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 25 or greater
Structure length177 ft (53.9 m)
Longest span171 ft (52.1 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,250 (2022)
Projected traffic26,500 by 2040
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US17N.BYP over SR1403 built?

It was built in 2006, making it 19 years old in 2025.

What condition is US17N.BYP over SR1403 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 US17N.BYP over SR1403 carry?

About 13,250 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is US17N.BYP over SR1403?

The structure is 177 ft (53.9 m) long with a longest span of 171 ft (52.1 m) and a deck 46 ft wide.

Who owns US17N.BYP over SR1403?

It is owned by the State Highway Agency.