Structure 54S43200001 · McMinn County, TN

Fau 307 over Oostanaula Creek

Carries Fau 307 over Oostanaula Creek, In Athens City Limits.

Overall conditionPoor

Set by its lowest-rated component: Culvert at 4 of 9.

How ratings work
Culvertsets the rating4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 4/9

A culvert 50 ft across with 3 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.

Built198640 years old
Length49.9 ft15.2 m
Daily traffic4,813counted 2021
Last inspectedApril 2023every 24 months

Location

StateTennessee
CountyMcMinn
LocationIn Athens City Limits
CarriesFau 307
CrossesOostanaula Creek
Coordinates35.44826, -84.58417

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length49.9 ft (15.2 m)
Max Span15.1 ft (4.6 m)
Deck Width60.4 ft (18.4 m)
Deck Area279.7 sq m
Main Spans3
Year Built1986

Traffic

Avg Daily Traffic4,813 (2021)
Truck Traffic3%
Lanes On Bridge3

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number54S43200001

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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