Structure 3S80420001 · Benton County, TN

Fas 191 over Birdsong Creek

Carries Fas 191 over Birdsong Creek, 5.3 Mi SE Jct Sr1&sr191.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT271 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 8/9Substructure 5/9 · sets the rating

271 ft end to end, longest span 103 ft: about 4 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 multi-beam bridge.

Built1965rebuilt 1990
Length271.0 ft82.6 m
Daily traffic1,099counted 2021
Last inspectedFebruary 2024every 24 months

Location

StateTennessee
CountyBenton
Location5.3 Mi SE Jct Sr1&sr191
CarriesFas 191
CrossesBirdsong Creek
Coordinates35.98661, -88.05253

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length271.0 ft (82.6 m)
Max Span103.0 ft (31.4 m)
Deck Width36.4 ft (11.1 m)
Deck Area916.9 sq m
Main Spans3
Year Built1965 (reconstructed 1990)

Traffic

Avg Daily Traffic1,099 (2021)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number03S80420001

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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