Structure 870302 · Miami-Dade County, FL

I-195 (sr-112) over Biscayne Bay

Carries I-195 (sr-112) over Biscayne Bay, 2.4 Miles E Of Us-1.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,138 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

1,138 ft end to end, longest span 98 ft: about 3.2 football fields. 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.

Built1959rebuilt 1991
Length1138.1 ft346.9 m
Daily traffic121,000counted 2022
Last inspectedOctober 2023every 24 months

Location

StateFlorida
CountyMiami-Dade
Location2.4 Miles E Of Us-1
CarriesI-195 (sr-112)
CrossesBiscayne Bay
Coordinates25.81053, -80.14867

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1138.1 ft (346.9 m)
Max Span98.1 ft (29.9 m)
Deck Width126.0 ft (38.4 m)
Deck Area13321.0 sq m
Main Spans17
Year Built1959 (reconstructed 1991)

Traffic

Avg Daily Traffic121,000 (2022)
Truck Traffic4%
Lanes On Bridge6

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number870302

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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