Structure 79I00400125 · Shelby County, TN

Nfa D958 over Chambers Chapel RD / I40

Carries Nfa D958 over Chambers Chapel RD / I40, Chambers Chapel Rd-shelby.

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 FT245 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

245 ft end to end, longest span 70 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 tee-beam bridge.

Built196264 years old
Length244.8 ft74.6 m
Daily traffic190counted 2020
Last inspectedNovember 2024every 24 months

Location

StateTennessee
CountyShelby
LocationChambers Chapel Rd-shelby
CarriesNfa D958
CrossesChambers Chapel RD / I40
Coordinates35.24328, -89.70089

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length244.8 ft (74.6 m)
Max Span69.6 ft (21.2 m)
Deck Width35.1 ft (10.7 m)
Deck Area798.2 sq m
Main Spans2
Year Built1962

Traffic

Avg Daily Traffic190 (2020)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number79I00400125

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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