Structure 876410 · Miami-Dade County, FL

NW 29th Avenue over Comfort Canal

Carries NW 29th Avenue over Comfort Canal, 180ft. N Of NW 11th St..

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
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 5/9 · sets the ratingSubstructure 7/9

31 ft end to end, longest span 15 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.

Built194185 years old
Length30.5 ft9.3 m
Daily traffic6,346counted 2020
Last inspectedSeptember 2024every 24 months

Location

StateFlorida
CountyMiami-Dade
Location180ft. N Of NW 11th St.
CarriesNW 29th Avenue
CrossesComfort Canal
Coordinates25.78369, -80.24206

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length30.5 ft (9.3 m)
Max Span15.4 ft (4.7 m)
Deck Width23.0 ft (7 m)
Deck Area65.1 sq m
Main Spans2
Year Built1941

Traffic

Avg Daily Traffic6,346 (2020)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalUnknown
Structure Number876410

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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