Structure 47I06400027 · Knox County, TN

Fau 3773 over Millertown Pk. / I640

Carries Fau 3773 over Millertown Pk. / I640, NW Of Vs 11w.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT257 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

257 ft end to end, longest span 130 ft: about 4 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 box-beam bridge.

Built198145 years old
Length256.9 ft78.3 m
Daily traffic7,033counted 2021
Last inspectedApril 2024every 24 months

Location

StateTennessee
CountyKnox
LocationNW Of Vs 11w
CarriesFau 3773
CrossesMillertown Pk. / I640
Coordinates36.02960, -83.87175

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length256.9 ft (78.3 m)
Max Span129.9 ft (39.6 m)
Deck Width100.1 ft (30.5 m)
Deck Area2388.2 sq m
Main Spans2
Year Built1981

Traffic

Avg Daily Traffic7,033 (2021)
Truck Traffic6%
Lanes On Bridge5
Lanes Under Bridge6

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number47I06400027

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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