Structure 871110 · Miami-Dade County, FL

Sr821 Rmp To I75sb over I-75/I-75 Express Lanes

Carries Sr821 Rmp To I75sb over I-75/I-75 Express Lanes, 3.47mi S Of Sr-823.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT984 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

984 ft end to end, longest span 238 ft: about 2.7 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 box-beam bridge.

Built20188 years old
Length983.9 ft299.9 m
Daily traffic7,100counted 2024
Last inspectedDecember 2024every 24 months

Location

StateFlorida
CountyMiami-Dade
Location3.47mi S Of Sr-823
CarriesSr821 Rmp To I75sb
CrossesI-75/I-75 Express Lanes
Coordinates25.95264, -80.35194

Physical Characteristics

MaterialSteel Continuous
DesignBox Beam - Single/Spread
Total Length983.9 ft (299.9 m)
Max Span237.5 ft (72.4 m)
Deck Width43.0 ft (13.1 m)
Deck Area3928.7 sq m
Main Spans5
Year Built2018

Traffic

Avg Daily Traffic7,100 (2024)
Truck Traffic14%
Lanes On Bridge2
Lanes Under Bridge15

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number871110

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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