Structure 79I02400136 · Shelby County, TN

I-240 over I240 WB / I40 / Sr001

Carries I-240 over I240 WB / I40 / Sr001, I-40 Jct..

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,974 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

1,974 ft end to end, longest span 190 ft: about 5.5 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 multi-beam bridge.

Built200521 years old
Length1974.1 ft601.7 m
Daily traffic—reported figure implausible
Last inspectedMarch 2023every 24 months

Location

StateTennessee
CountyShelby
LocationI-40 Jct.
CarriesI-240
CrossesI240 WB / I40 / Sr001
Coordinates35.14962, -89.88210

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1974.1 ft (601.7 m)
Max Span190.0 ft (57.9 m)
Deck Width44.0 ft (13.4 m)
Deck Area8062.8 sq m
Main Spans13
Year Built2005

Traffic

Avg Daily Traffic206,483 (2021)
That is about 103,241 vehicles per lane per day — beyond what any U.S. road carries (the busiest freeways run about 25,000–30,000). It is almost certainly a data-entry error in the National Bridge Inventory, so we leave this bridge out of traffic rankings.
Truck Traffic8%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number79I02400136

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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