Structure 950A7180003 · Wilson County, TN

Nfa A718 over Nancy Branch

Carries Nfa A718 over Nancy Branch, 0.8 Mi West Of Sr141.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
25 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 6/9

25 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built1945rebuilt 1965
Length24.9 ft7.6 m
Daily traffic410counted 2020
Last inspectedApril 2024every 24 months

Location

StateTennessee
CountyWilson
Location0.8 Mi West Of Sr141
CarriesNfa A718
CrossesNancy Branch
Coordinates36.29190, -86.22332

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length24.9 ft (7.6 m)
Max Span23.0 ft (7 m)
Deck Width27.2 ft (8.3 m)
Deck Area63.1 sq m
Main Spans1
Year Built1945 (reconstructed 1965)

Traffic

Avg Daily Traffic410 (2020)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number950A7180003

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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