Structure 400A5400001 · Henry County, TN

Nfa A540 over Branch

Carries Nfa A540 over Branch, .3 Mi E Of Weakley Co LN.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT29 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

29 ft end to end. 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 channel-beam bridge.

Built197947 years old
Length28.9 ft8.8 m
Daily traffic20counted 2020
Last inspectedOctober 2023every 24 months

Location

StateTennessee
CountyHenry
Location.3 Mi E Of Weakley Co LN
CarriesNfa A540
CrossesBranch
Coordinates36.19611, -88.52409

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length28.9 ft (8.8 m)
Max Span28.9 ft (8.8 m)
Deck Width14.8 ft (4.5 m)
Deck Area39.6 sq m
Main Spans1
Year Built1979

Traffic

Avg Daily Traffic20 (2020)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical7 — Countermeasures installed
Structure Number400A5400001

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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