Structure 870927 · Miami-Dade County, FL

Sr821 SB Heft 25.6 over Tamiami Canal

Carries Sr821 SB Heft 25.6 over Tamiami Canal, SB Heft Exit To WB US 41.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very 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 FT93 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

93 ft end to end, longest span 32 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.

Built20215 years old
Length92.8 ft28.3 m
Daily traffic7,800counted 2024
Last inspectedApril 2024every 24 months

Location

StateFlorida
CountyMiami-Dade
LocationSB Heft Exit To WB US 41
CarriesSr821 SB Heft 25.6
CrossesTamiami Canal
Coordinates25.76139, -80.38739

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length92.8 ft (28.3 m)
Max Span31.8 ft (9.7 m)
Deck Width55.1 ft (16.8 m)
Deck Area475.4 sq m
Main Spans3
Year Built2021

Traffic

Avg Daily Traffic7,800 (2024)
Truck Traffic12%
Lanes On Bridge3

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number870927

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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