Structure 470A0920001 · Knox County, TN

Fau 5650 over Third Creek

Carries Fau 5650 over Third Creek, N Of Sr1-sr158 Jct-tyson.

Overall conditionFair

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

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT82 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 82 ft across with 3 openings. Lengths and the car 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, so those are drawn as typical for a culvert.

Built195076 years old
Length82.0 ft25 m
Daily traffic6,430counted 2021
Last inspectedMay 2024every 24 months

Location

StateTennessee
CountyKnox
LocationN Of Sr1-sr158 Jct-tyson
CarriesFau 5650
CrossesThird Creek
Coordinates35.95513, -83.94843

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length82.0 ft (25 m)
Max Span18.0 ft (5.5 m)
Deck Width54.5 ft (16.6 m)
Deck Area415 sq m
Main Spans3
Year Built1950

Traffic

Avg Daily Traffic6,430 (2021)
Truck Traffic3%
Lanes On Bridge4

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number470A0920001

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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