Structure 670191 · Forsyth County, NC

4th Street over Us52 Us311 & Nc8

Carries 4th Street over Us52 Us311 & Nc8, 0.4 Mi.w.jct.sr4394.

Overall conditionPoor

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

How ratings work
Decksets the rating4/9 · Poor
Superstructure5/9 · Fair
Substructure5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT177 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 5/9Substructure 5/9

177 ft end to end, longest span 48 ft: about 2 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.

Built196363 years old
Length176.8 ft53.9 m
Daily traffic1,200counted 2021
Last inspectedJune 2024every 24 months

Location

StateNorth Carolina
CountyForsyth
Location0.4 Mi.w.jct.sr4394
Carries4th Street
CrossesUs52 Us311 & Nc8
Coordinates36.09943, -80.23606

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length176.8 ft (53.9 m)
Max Span47.9 ft (14.6 m)
Deck Width52.5 ft (16 m)
Deck Area862.4 sq m
Main Spans4
Year Built1963

Traffic

Avg Daily Traffic1,200 (2021)
Truck Traffic7%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000670191

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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