Structure 47I00400093 · Knox County, TN

I40 over I40 / Asheville Hwy.

Carries I40 over I40 / Asheville Hwy., 1.4 M SE Of Holston DR.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT193 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

193 ft end to end, longest span 52 ft: about 3 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.

Built196759 years old
Length192.9 ft58.8 m
Daily traffic77,847counted 2021
Last inspectedDecember 2024every 24 months

Location

StateTennessee
CountyKnox
Location1.4 M SE Of Holston DR
CarriesI40
CrossesI40 / Asheville Hwy.
Coordinates36.01053, -83.84206

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length192.9 ft (58.8 m)
Max Span51.8 ft (15.8 m)
Deck Width113.8 ft (34.7 m)
Deck Area2040.4 sq m
Main Spans4
Year Built1967

Traffic

Avg Daily Traffic77,847 (2021)
Truck Traffic6%
Lanes On Bridge6
Lanes Under Bridge4

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number47I00400093

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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