Structure 870309 · Miami-Dade County, FL

I-95 SB (870430) over NW 71-75 ST & Nw5 Pl &rr

Carries I-95 SB (870430) over NW 71-75 ST & Nw5 Pl &rr, 0.2mi S Of Sr-934(nw79st).

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,506 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

1,506 ft end to end, longest span 76 ft: about 4.2 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 1995
Length1505.9 ft459 m
Daily traffic101,000counted 2023
Last inspectedMarch 2023every 24 months

Location

StateFlorida
CountyMiami-Dade
Location0.2mi S Of Sr-934(nw79st)
CarriesI-95 SB (870430)
CrossesNW 71-75 ST & Nw5 Pl &rr
Coordinates25.84148, -80.20623

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1505.9 ft (459 m)
Max Span76.1 ft (23.2 m)
Deck Width97.4 ft (29.7 m)
Deck Area13632.3 sq m
Main Spans23
Year Built1959 (reconstructed 1995)

Traffic

Avg Daily Traffic101,000 (2023)
Truck Traffic4%
Lanes On Bridge7
Lanes Under Bridge10

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number870309

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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