Structure 870707 · Miami-Dade County, FL

Sr91 SB Tpk 2.514 over Frontage RD

Carries Sr91 SB Tpk 2.514 over Frontage RD, 0.3m N Of NW 199 ST.

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
CAR · 15 FT72 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

72 ft end to end. 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 multi-beam bridge.

Built198838 years old
Length71.9 ft21.9 m
Daily traffic5,450counted 2022
Last inspectedFebruary 2024every 24 months

Location

StateFlorida
CountyMiami-Dade
Location0.3m N Of NW 199 ST
CarriesSr91 SB Tpk 2.514
CrossesFrontage RD
Coordinates25.96009, -80.23039

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length71.9 ft (21.9 m)
Max Span71.9 ft (21.9 m)
Deck Width42.3 ft (12.9 m)
Deck Area282.5 sq m
Main Spans1
Year Built1988

Traffic

Avg Daily Traffic5,450 (2022)
Truck Traffic10%
Lanes On Bridge2
Lanes Under Bridge1

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number870707

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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