Structure 670110 · Forsyth County, NC

Sr1301 over Us421

Carries Sr1301 over Us421, 0.4 Mi.n.jct.sr1001.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT221 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

221 ft end to end, longest span 54 ft: about 3 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.

Built195868 years old
Length220.8 ft67.3 m
Daily traffic250counted 2019
Last inspectedSeptember 2024every 24 months

Location

StateNorth Carolina
CountyForsyth
Location0.4 Mi.n.jct.sr1001
CarriesSr1301
CrossesUs421
Coordinates36.10181, -80.48923

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length220.8 ft (67.3 m)
Max Span53.8 ft (16.4 m)
Deck Width26.2 ft (8 m)
Deck Area538.4 sq m
Main Spans4
Year Built1958

Traffic

Avg Daily Traffic250 (2019)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000670110

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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