Structure 47I00400163 · Knox County, TN

I140 over I-140 / I40

Carries I140 over I-140 / I40, City Of Knoxville.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT369 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

369 ft end to end, longest span 194 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.

Built199630 years old
Length369.1 ft112.5 m
Daily traffic60,213counted 2021
Last inspectedOctober 2024every 24 months

Location

StateTennessee
CountyKnox
LocationCity Of Knoxville
CarriesI140
CrossesI-140 / I40
Coordinates35.91180, -84.12217

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length369.1 ft (112.5 m)
Max Span193.9 ft (59.1 m)
Deck Width104.0 ft (31.7 m)
Deck Area3566.2 sq m
Main Spans2
Year Built1996

Traffic

Avg Daily Traffic60,213 (2021)
Truck Traffic6%
Lanes On Bridge6
Lanes Under Bridge9

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number47I00400163

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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