Structure 33SR1530029 · Hamilton County, TN

Fau 3588 Nbl over Sr-153

Carries Fau 3588 Nbl over Sr-153, 2.4 Mi.n.of Tn.river.

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 FT184 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

184 ft end to end, longest span 51 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.

Built195472 years old
Length184.1 ft56.1 m
Daily traffic24,657counted 2021
Last inspectedDecember 2024every 24 months

Location

StateTennessee
CountyHamilton
Location2.4 Mi.n.of Tn.river
CarriesFau 3588 Nbl
CrossesSr-153
Coordinates35.13082, -85.24468

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length184.1 ft (56.1 m)
Max Span50.9 ft (15.5 m)
Deck Width34.4 ft (10.5 m)
Deck Area589.0 sq m
Main Spans4
Year Built1954

Traffic

Avg Daily Traffic24,657 (2021)
Truck Traffic9%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number33SR1530029

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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