Structure 934224 · Palm Beach County, FL

Palm B Lake Bvd WB over Lake Mangonia Canal

Carries Palm B Lake Bvd WB over Lake Mangonia Canal, 0.6mi W Of Australian AVE.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT75 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

75 ft end to end, longest span 25 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 slab bridge.

Built1962rebuilt 1980
Length75.1 ft22.9 m
Daily traffic19,750counted 2023
Last inspectedMay 2024every 24 months

Location

StateFlorida
CountyPalm Beach
Location0.6mi W Of Australian AVE
CarriesPalm B Lake Bvd WB
CrossesLake Mangonia Canal
Coordinates26.72511, -80.07739

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length75.1 ft (22.9 m)
Max Span24.9 ft (7.6 m)
Deck Width55.4 ft (16.9 m)
Deck Area387.0 sq m
Main Spans3
Year Built1962 (reconstructed 1980)

Traffic

Avg Daily Traffic19,750 (2023)
Truck Traffic8%
Lanes On Bridge3

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number934224

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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