Structure 874447 · Miami-Dade County, FL

SW 256th Street over Canal C-102

Carries SW 256th Street over Canal C-102, 0.6 Mi E Of SW 137th Ave..

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 overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT68 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 7/9

68 ft end to end, longest span 34 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.

Built1966rebuilt 1997
Length68.2 ft20.8 m
Daily traffic3,465counted 2023
Last inspectedDecember 2023every 24 months

Location

StateFlorida
CountyMiami-Dade
Location0.6 Mi E Of SW 137th Ave.
CarriesSW 256th Street
CrossesCanal C-102
Coordinates25.52926, -80.40241

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length68.2 ft (20.8 m)
Max Span34.1 ft (10.4 m)
Deck Width44.9 ft (13.7 m)
Deck Area285.0 sq m
Main Spans2
Year Built1966 (reconstructed 1997)

Traffic

Avg Daily Traffic3,465 (2023)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number874447

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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