Structure 540Z0020001 · McMinn County, TN

Nfa A044 over Branch

Carries Nfa A044 over Branch, West Of I75.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 50 ft across with 2 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.

Built196759 years old
Length49.9 ft15.2 m
Daily traffic330counted 2020
Last inspectedAugust 2023every 24 months

Location

StateTennessee
CountyMcMinn
LocationWest Of I75
CarriesNfa A044
CrossesBranch
Coordinates35.54595, -84.56995

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length49.9 ft (15.2 m)
Max Span12.1 ft (3.7 m)
Deck Area138.3 sq m
Main Spans2
Year Built1967

Traffic

Avg Daily Traffic330 (2020)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number540Z0020001

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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