Structure 1930730 · Wilkes County, NC

Sr1185 over Yadkin River

Carries Sr1185 over Yadkin River, .1 Mi.e.jct Us421b.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT694 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9Substructure 4/9 · sets the rating

694 ft end to end, longest span 68 ft: about 1.9 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.

Built195274 years old
Length693.9 ft211.5 m
Daily traffic5,500counted 2017
Last inspectedApril 2023every 24 months

Location

StateNorth Carolina
CountyWilkes
Location.1 Mi.e.jct Us421b
CarriesSr1185
CrossesYadkin River
Coordinates36.14906, -81.17746

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length693.9 ft (211.5 m)
Max Span67.9 ft (20.7 m)
Deck Width31.5 ft (9.6 m)
Deck Area2030.4 sq m
Main Spans7
Year Built1952

Traffic

Avg Daily Traffic5,500 (2017)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000001930730

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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