Structure 47I00400135 · Knox County, TN

I40 Rmp over I40-eb-flyover / 3 Rts.

Carries I40 Rmp over I40-eb-flyover / 3 Rts., At I-40 & I-640 Jct..

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,235 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

1,235 ft end to end, longest span 192 ft: about 3.4 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 box-beam bridge.

Built198244 years old
Length1234.9 ft376.4 m
Daily traffic68,467counted 2021
Last inspectedJanuary 2025every 24 months

Location

StateTennessee
CountyKnox
LocationAt I-40 & I-640 Jct.
CarriesI40 Rmp
CrossesI40-eb-flyover / 3 Rts.
Coordinates36.01167, -83.86166

Physical Characteristics

MaterialSteel Continuous
DesignBox Beam - Single/Spread
Total Length1234.9 ft (376.4 m)
Max Span191.9 ft (58.5 m)
Deck Width44.0 ft (13.4 m)
Deck Area5043.8 sq m
Main Spans7
Year Built1982

Traffic

Avg Daily Traffic68,467 (2021)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge10

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number47I00400135

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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