Structure 15I00400004 · Cocke County, TN

I40 over SR 9

Carries I40 over SR 9, 2 M E Of Jefferson Co.

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 FT326 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

326 ft end to end, longest span 101 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 tee-beam bridge.

Built1961rebuilt 1994
Length326.4 ft99.5 m
Daily traffic35,052counted 2021
Last inspectedMay 2024every 24 months

Location

StateTennessee
CountyCocke
Location2 M E Of Jefferson Co
CarriesI40
CrossesSR 9
Coordinates35.97037, -83.25694

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length326.4 ft (99.5 m)
Max Span100.7 ft (30.7 m)
Deck Width48.2 ft (14.7 m)
Deck Area1462.7 sq m
Main Spans4
Year Built1961 (reconstructed 1994)

Traffic

Avg Daily Traffic35,052 (2021)
Truck Traffic6%
Lanes On Bridge3
Lanes Under Bridge5

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number15I00400004

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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