Structure 870384 · Miami-Dade County, FL

Sr821 NB Heft 7.55 over Canal C-102

Carries Sr821 NB Heft 7.55 over Canal C-102, 1.69 Mi. S Of SW 112 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
SEMI-TRUCK · 72 FT202 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

202 ft end to end, longest span 68 ft: about 3 semi-trucks nose to tail. 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 multi-beam bridge.

Built197353 years old
Length202.4 ft61.7 m
Daily traffic53,150counted 2024
Last inspectedFebruary 2024every 24 months

Location

StateFlorida
CountyMiami-Dade
Location1.69 Mi. S Of SW 112 Ave.
CarriesSr821 NB Heft 7.55
CrossesCanal C-102
Coordinates25.52571, -80.39758

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length202.4 ft (61.7 m)
Max Span67.6 ft (20.6 m)
Deck Width59.4 ft (18.1 m)
Deck Area1116.8 sq m
Main Spans3
Year Built1973

Traffic

Avg Daily Traffic53,150 (2024)
Truck Traffic6%
Lanes On Bridge3

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number870384

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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