Structure 86I00260034 · Unicoi County, TN

I26 Lt LN over Nolichucky River

Carries I26 Lt LN over Nolichucky River, 2.2 Mi. S. SR 81.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure at 0 of 9.

How ratings work
Decksets the rating0/9 · Failed
Superstructuresets the rating0/9 · Failed
Substructure6/9 · Satisfactory
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT551 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 0/9 · sets the ratingSuperstructure 0/9 · sets the ratingSubstructure 6/9

551 ft end to end, longest span 68 ft: about 1.5 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.

Built197749 years old
Length551.2 ft168 m
Daily traffic12,654counted 2021
Last inspectedOctober 2024every 24 months

Location

StateTennessee
CountyUnicoi
Location2.2 Mi. S. SR 81
CarriesI26 Lt LN
CrossesNolichucky River
Coordinates36.12710, -82.44334

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length551.2 ft (168 m)
Max Span67.9 ft (20.7 m)
Deck Width44.6 ft (13.6 m)
Deck Area2284.8 sq m
Main Spans8
Year Built1977

Traffic

Avg Daily Traffic12,654 (2021)
Truck Traffic6%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical0 — Bridge closed
Structure Number86I00260034

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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