Structure 19I00650113 · Davidson County, TN

I440 over L3 Sn164 & 165

Carries I440 over L3 Sn164 & 165, I440-i65 Loop@melrose I/c.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,036 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

1,036 ft end to end, longest span 282 ft: about 2.9 football fields. 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.

Built1985rebuilt 2020
Length1035.8 ft315.7 m
Daily traffic96,254counted 2021
Last inspectedFebruary 2024every 24 months

Location

StateTennessee
CountyDavidson
LocationI440-i65 Loop@melrose I/c
CarriesI440
CrossesL3 Sn164 & 165
Coordinates36.11577, -86.77405

Physical Characteristics

MaterialSteel Continuous
DesignBox Beam - Single/Spread
Total Length1035.8 ft (315.7 m)
Max Span281.8 ft (85.9 m)
Deck Width59.7 ft (18.2 m)
Deck Area5745.7 sq m
Main Spans6
Year Built1985 (reconstructed 2020)

Traffic

Avg Daily Traffic96,254 (2021)
Truck Traffic7%
Lanes On Bridge3
Lanes Under Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number19I00650113

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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