Structure 160A0640001 · Coffee County, TN

Nfa A064 over Duck River

Carries Nfa A064 over Duck River, 1.6 Mi From SR 53.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT151 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

151 ft end to end, longest span 30 ft: about 2 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.

Built196462 years old
Length150.6 ft45.9 m
Daily traffic1,150counted 2020
Last inspectedMarch 2024every 24 months

Location

StateTennessee
CountyCoffee
Location1.6 Mi From SR 53
CarriesNfa A064
CrossesDuck River
Coordinates35.54180, -86.10345

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length150.6 ft (45.9 m)
Max Span29.9 ft (9.1 m)
Deck Width23.6 ft (7.2 m)
Deck Area330.5 sq m
Main Spans5
Year Built1964

Traffic

Avg Daily Traffic1,150 (2020)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number160A0640001

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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