Structure 47I02750003 · Knox County, TN

I275 over I275 / Elm Street

Carries I275 over I275 / Elm Street, Knoxville.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT134 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 5/9 · sets the rating

134 ft end to end, longest span 41 ft. 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.

Built1958rebuilt 1981
Length133.9 ft40.8 m
Daily traffic67,587counted 2021
Last inspectedOctober 2024every 24 months

Location

StateTennessee
CountyKnox
LocationKnoxville
CarriesI275
CrossesI275 / Elm Street
Coordinates35.97353, -83.93192

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length133.9 ft (40.8 m)
Max Span41.0 ft (12.5 m)
Deck Width144.0 ft (43.9 m)
Deck Area1791.1 sq m
Main Spans4
Year Built1958 (reconstructed 1981)

Traffic

Avg Daily Traffic67,587 (2021)
Truck Traffic6%
Lanes On Bridge8
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number47I02750003

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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