Structure AFFLXLWU18169 · Bay County, FL

Tyndall County Lin over Farmdale Bayou

Carries Tyndall County Lin over Farmdale Bayou, 1.5 Miles West Of Tyndall.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT38 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

38 ft end to end, longest span 10 ft. 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 multi-beam bridge.

Built1950rebuilt 2008
Length38.1 ft11.6 m
Daily traffic4counted 2024
Last inspectedJanuary 2024every 24 months

Location

StateFlorida
CountyBay
Location1.5 Miles West Of Tyndall
CarriesTyndall County Lin
CrossesFarmdale Bayou
Coordinates30.00511, -85.47325

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length38.1 ft (11.6 m)
Max Span10.2 ft (3.1 m)
Deck Width16.4 ft (5 m)
Deck Area58 sq m
Main Spans4
Year Built1950 (reconstructed 2008)

Traffic

Avg Daily Traffic4 (2024)
Lanes On Bridge1

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerAir Force
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberAFFLXLWU18169

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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