Structure 79I02400131 · Shelby County, TN

I240 WB Ex Rp over I-240 WB Ex Rp / I-240

Carries I240 WB Ex Rp over I-240 WB Ex Rp / I-240, I240 &sr 385 Jct.

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 FT615 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

615 ft end to end, longest span 255 ft: about 1.7 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.

Built199333 years old
Length615.2 ft187.5 m
Daily traffic—reported figure implausible
Last inspectedMarch 2023every 24 months

Location

StateTennessee
CountyShelby
LocationI240 &sr 385 Jct
CarriesI240 WB Ex Rp
CrossesI-240 WB Ex Rp / I-240
Coordinates35.08439, -89.87756

Physical Characteristics

MaterialSteel Continuous
DesignBox Beam - Single/Spread
Total Length615.2 ft (187.5 m)
Max Span254.9 ft (77.7 m)
Deck Width44.0 ft (13.4 m)
Deck Area2512.5 sq m
Main Spans3
Year Built1993

Traffic

Avg Daily Traffic176,791 (2021)
That is about 88,395 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 Bridge6

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 Number79I02400131

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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