Structure 1930055 · Wilkes County, NC

Us421 Nbl over Lewis Fork Creek

Carries Us421 Nbl over Lewis Fork Creek, .1 Mi.s.jct.sr1307.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT387 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

387 ft end to end, longest span 97 ft: about 5 semi-trucks nose to tail. 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.

Built200422 years old
Length386.8 ft117.9 m
Daily traffic7,000counted 2022
Last inspectedNovember 2024every 24 months

Location

StateNorth Carolina
CountyWilkes
Location.1 Mi.s.jct.sr1307
CarriesUs421 Nbl
CrossesLewis Fork Creek
Coordinates36.14471, -81.30129

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length386.8 ft (117.9 m)
Max Span96.8 ft (29.5 m)
Deck Width40.0 ft (12.2 m)
Deck Area1438.4 sq m
Main Spans4
Year Built2004

Traffic

Avg Daily Traffic7,000 (2022)
Truck Traffic14%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000001930055

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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