Structure 9S80370017 · Carroll County, TN

Fas 424 over Big Sandy River

Carries Fas 424 over Big Sandy River, 5.2 Mi NW Jct I40&sr114.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT101 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

101 ft end to end, longest span 43 ft. Lengths and the car 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.

Built195670 years old
Length101.0 ft30.8 m
Daily traffic562counted 2021
Last inspectedJuly 2023every 24 months

Location

StateTennessee
CountyCarroll
Location5.2 Mi NW Jct I40&sr114
CarriesFas 424
CrossesBig Sandy River
Coordinates35.84847, -88.34386

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length101.0 ft (30.8 m)
Max Span43.0 ft (13.1 m)
Deck Width28.9 ft (8.8 m)
Deck Area271.0 sq m
Main Spans3
Year Built1956

Traffic

Avg Daily Traffic562 (2021)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number09S80370017

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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