Structure 790B5590005 · Shelby County, TN

Fau 5012 over Johns Creek

Carries Fau 5012 over Johns Creek, Knight Arnold RD - Memphi.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT114 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 6/9

114 ft end to end, longest span 52 ft. 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 or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built196264 years old
Length113.5 ft34.6 m
Daily traffic23,199counted 2021
Last inspectedMarch 2023every 24 months

Location

StateTennessee
CountyShelby
LocationKnight Arnold RD - Memphi
CarriesFau 5012
CrossesJohns Creek
Coordinates35.06186, -89.89136

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length113.5 ft (34.6 m)
Max Span51.5 ft (15.7 m)
Deck Width74.5 ft (22.7 m)
Deck Area785.4 sq m
Main Spans3
Year Built1962

Traffic

Avg Daily Traffic23,199 (2021)
Truck Traffic4%
Lanes On Bridge5

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number790B5590005

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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