Structure 280A4500001 · Giles County, TN

Nfa A450 over Puncheon Branch

Carries Nfa A450 over Puncheon Branch, 2.2 M SW Of Minor Hill.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT30 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 30 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.

Built194779 years old
Length29.5 ft9 m
Daily traffic100counted 2020
Last inspectedMarch 2024every 24 months

Location

StateTennessee
CountyGiles
Location2.2 M SW Of Minor Hill
CarriesNfa A450
CrossesPuncheon Branch
Coordinates35.04764, -87.19756

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length29.5 ft (9 m)
Max Span14.1 ft (4.3 m)
Deck Width16.1 ft (4.9 m)
Deck Area44.1 sq m
Main Spans2
Year Built1947

Traffic

Avg Daily Traffic100 (2020)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number280A4500001

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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