Structure 520A2900001 · Lincoln County, TN

Nfa A290 over Trotters Branch

Carries Nfa A290 over Trotters Branch, 3 M. W. Flintville..

Overall conditionFair

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

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT54 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 54 ft across with 5 openings. 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, so those are drawn as typical for a culvert.

Built196066 years old
Length53.8 ft16.4 m
Daily traffic40counted 2020
Last inspectedAugust 2023every 24 months

Location

StateTennessee
CountyLincoln
Location3 M. W. Flintville.
CarriesNfa A290
CrossesTrotters Branch
Coordinates35.06394, -86.48161

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length53.8 ft (16.4 m)
Max Span9.8 ft (3 m)
Deck Width16.1 ft (4.9 m)
Deck Area80.4 sq m
Main Spans5
Year Built1960

Traffic

Avg Daily Traffic40 (2020)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number520A2900001

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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