Structure 870702 · Miami-Dade County, FL

Sr91 NB Tpk 2.241 over SR 91 Tpk (dolphin Int)

Carries Sr91 NB Tpk 2.241 over SR 91 Tpk (dolphin Int), Ramp N To W (n NW 199 St).

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,199 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

1,199 ft end to end, longest span 204 ft: about 3.3 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.

Built198838 years old
Length1199.1 ft365.5 m
Daily traffic2,200counted 2023
Last inspectedOctober 2023every 24 months

Location

StateFlorida
CountyMiami-Dade
LocationRamp N To W (n NW 199 St)
CarriesSr91 NB Tpk 2.241
CrossesSR 91 Tpk (dolphin Int)
Coordinates25.95955, -80.22946

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1199.1 ft (365.5 m)
Max Span204.1 ft (62.2 m)
Deck Width50.9 ft (15.5 m)
Deck Area5665.2 sq m
Main Spans6
Year Built1988

Traffic

Avg Daily Traffic2,200 (2023)
Truck Traffic10%
Lanes On Bridge2
Lanes Under Bridge10

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number870702

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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