Structure 300A8240001 · Greene County, TN

Nfa A824 over Richland Creek

Carries Nfa A824 over Richland Creek, 2.1 M S Of Us321-sr70 Jct.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 5/9 · sets the rating

31 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a deck arch.

Built1920106 years old
Length30.8 ft9.4 m
Daily traffic220counted 2020
Last inspectedFebruary 2025every 24 months

Location

StateTennessee
CountyGreene
Location2.1 M S Of Us321-sr70 Jct
CarriesNfa A824
CrossesRichland Creek
Coordinates36.12312, -82.84422

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length30.8 ft (9.4 m)
Max Span29.2 ft (8.9 m)
Deck Width24.6 ft (7.5 m)
Deck Area70.5 sq m
Main Spans1
Year Built1920

Traffic

Avg Daily Traffic220 (2020)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalUnknown
Structure Number300A8240001

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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