Structure 79I00550030 · Shelby County, TN

I55 SB over I-55 S.b. / Sr-3

Carries I55 SB over I-55 S.b. / Sr-3, I55 / SR 3 Jct.

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 FT201 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

201 ft end to end, longest span 57 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 box-beam bridge.

Built1960rebuilt 2001
Length201.1 ft61.3 m
Daily traffic131,916counted 2021
Last inspectedDecember 2024every 24 months

Location

StateTennessee
CountyShelby
LocationI55 / SR 3 Jct
CarriesI55 SB
CrossesI-55 S.b. / Sr-3
Coordinates35.06322, -90.02289

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Single/Spread
Total Length201.1 ft (61.3 m)
Max Span57.1 ft (17.4 m)
Deck Width74.1 ft (22.6 m)
Deck Area1385.4 sq m
Main Spans4
Year Built1960 (reconstructed 2001)

Traffic

Avg Daily Traffic131,916 (2021)
Truck Traffic8%
Lanes On Bridge4
Lanes Under Bridge6

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number79I00550030

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.

Nearby Bridges