Structure 876710 · Miami-Dade County, FL

West 29th Street over Sunset Lake Canal

Carries West 29th Street over Sunset Lake Canal, 0.2 Mile W Of Alton Road.

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
SEMI-TRUCK · 72 FT143 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 7/9

143 ft end to end, longest span 50 ft. Lengths and the semi-truck 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 tee-beam bridge.

Built1926100 years old
Length142.7 ft43.5 m
Daily traffic2,289counted 2024
Last inspectedSeptember 2024every 24 months

Location

StateFlorida
CountyMiami-Dade
Location0.2 Mile W Of Alton Road
CarriesWest 29th Street
CrossesSunset Lake Canal
Coordinates25.80531, -80.14119

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length142.7 ft (43.5 m)
Max Span49.9 ft (15.2 m)
Deck Width38.1 ft (11.6 m)
Deck Area504.6 sq m
Main Spans3
Year Built1926

Traffic

Avg Daily Traffic2,289 (2024)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour CriticalUnknown
Structure Number876710

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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