Structure 80A0140001 · Cannon County, TN

Nfa A013 over Saunders Fork Creek

Carries Nfa A013 over Saunders Fork Creek, Off Sr145 S Of Auburntown.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
24 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

24 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.

Built196561 years old
Length23.6 ft7.2 m
Daily traffic20counted 2020
Last inspectedMarch 2023every 24 months

Location

StateTennessee
CountyCannon
LocationOff Sr145 S Of Auburntown
CarriesNfa A013
CrossesSaunders Fork Creek
Coordinates35.90926, -86.10199

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length23.6 ft (7.2 m)
Max Span23.6 ft (7.2 m)
Deck Width14.1 ft (4.3 m)
Deck Area31.0 sq m
Main Spans1
Year Built1965

Traffic

Avg Daily Traffic20 (2020)
Truck Traffic4%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number080A0140001

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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