Structure 870724 · Miami-Dade County, FL

I-95 NB Flyover over NW 17 And 20th ST

Carries I-95 NB Flyover over NW 17 And 20th ST, N Of Midtown Interchange.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,836 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,836 ft end to end, longest span 240 ft: about 5.1 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.

Built199432 years old
Length1836.0 ft559.6 m
Daily traffic14,500counted 2023
Last inspectedFebruary 2025every 24 months

Location

StateFlorida
CountyMiami-Dade
LocationN Of Midtown Interchange
CarriesI-95 NB Flyover
CrossesNW 17 And 20th ST
Coordinates25.79198, -80.20483

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length1836.0 ft (559.6 m)
Max Span240.2 ft (73.2 m)
Deck Width29.9 ft (9.1 m)
Deck Area5092.4 sq m
Main Spans3
Year Built1994

Traffic

Avg Daily Traffic14,500 (2023)
Truck Traffic13%
Lanes On Bridge1
Lanes Under Bridge10

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number870724

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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