Structure 19I00400141 · Davidson County, TN

Fau 45 over I40

Carries Fau 45 over I40, Old Hickory Blvd/i40.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT223 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

223 ft end to end, longest span 111 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.

Built199135 years old
Length223.1 ft68 m
Daily traffic51,890counted 2021
Last inspectedJanuary 2024every 24 months

Location

StateTennessee
CountyDavidson
LocationOld Hickory Blvd/i40
CarriesFau 45
CrossesI40
Coordinates36.17001, -86.60120

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length223.1 ft (68 m)
Max Span110.9 ft (33.8 m)
Deck Width87.9 ft (26.8 m)
Deck Area1822.4 sq m
Main Spans2
Year Built1991

Traffic

Avg Daily Traffic51,890 (2021)
Truck Traffic7%
Lanes On Bridge6
Lanes Under Bridge5

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number19I00400141

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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