Structure 570474 · Davidson County, NC

I85s over I85n

Carries I85s over I85n, 1.0 Mi. N. Jct. Sr2010.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT319 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

319 ft end to end, longest span 175 ft: about 4 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.

Built198145 years old
Length318.9 ft97.2 m
Daily traffic25,250counted 2020
Last inspectedApril 2024every 24 months

Location

StateNorth Carolina
CountyDavidson
Location1.0 Mi. N. Jct. Sr2010
CarriesI85s
CrossesI85n
Coordinates35.82783, -80.16121

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length318.9 ft (97.2 m)
Max Span174.9 ft (53.3 m)
Deck Width58.7 ft (17.9 m)
Deck Area1739.9 sq m
Main Spans3
Year Built1981

Traffic

Avg Daily Traffic25,250 (2020)
Truck Traffic23%
Lanes On Bridge3
Lanes Under Bridge3

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000570474

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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