Structure 1330017 · Onslow County, NC

Nc172 over New River

Carries Nc172 over New River, 0.3mi.n. Of Jct.sr1558.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT2,781 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

2,781 ft end to end, longest span 138 ft: about 7.7 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built199333 years old
Length2780.8 ft847.6 m
Daily traffic20,500counted 2021
Last inspectedMarch 2024every 24 months

Location

StateNorth Carolina
CountyOnslow
Location0.3mi.n. Of Jct.sr1558
CarriesNc172
CrossesNew River
Coordinates34.57903, -77.39996

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length2780.8 ft (847.6 m)
Max Span137.8 ft (42 m)
Deck Width34.8 ft (10.6 m)
Deck Area8984.6 sq m
Main Spans31
Year Built1993

Traffic

Avg Daily Traffic20,500 (2021)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000001330017

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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