Structure 810616 · Guilford County, NC

I40e.bus Us421 over I40

Carries I40e.bus Us421 over I40, 0.2 Mi. E. Jct. Sr2007.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT344 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

344 ft end to end, longest span 103 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.

Built199135 years old
Length343.8 ft104.8 m
Daily traffic24,250counted 2020
Last inspectedAugust 2024every 24 months

Location

StateNorth Carolina
CountyGuilford
Location0.2 Mi. E. Jct. Sr2007
CarriesI40e.bus Us421
CrossesI40
Coordinates36.09767, -80.01576

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length343.8 ft (104.8 m)
Max Span102.7 ft (31.3 m)
Deck Width42.7 ft (13 m)
Deck Area1362.4 sq m
Main Spans4
Year Built1991

Traffic

Avg Daily Traffic24,250 (2020)
Truck Traffic12%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000810616

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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