Structure 19I00240107 · Davidson County, TN

I24 over I24 / North First ST

Carries I24 over I24 / North First ST, I24 / North First ST.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT379 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 5/9 · sets the rating

379 ft end to end, longest span 114 ft: about 5 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.

Built1961rebuilt 1985
Length378.9 ft115.5 m
Daily traffic113,584counted 2021
Last inspectedSeptember 2023every 24 months

Location

StateTennessee
CountyDavidson
LocationI24 / North First ST
CarriesI24
CrossesI24 / North First ST
Coordinates36.18020, -86.77447

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length378.9 ft (115.5 m)
Max Span113.8 ft (34.7 m)
Deck Width126.0 ft (38.4 m)
Deck Area4435.2 sq m
Main Spans2
Year Built1961 (reconstructed 1985)

Traffic

Avg Daily Traffic113,584 (2021)
Truck Traffic7%
Lanes On Bridge7
Lanes Under Bridge4

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number19I00240107

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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