Structure 870555 · Miami-Dade County, FL

S Miami AVE - I-95 over Sr-970 To SW 1st Ct

Carries S Miami AVE - I-95 over Sr-970 To SW 1st Ct, Downtown Intrchg.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT900 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

900 ft end to end, longest span 104 ft: about 2.5 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.

Built196957 years old
Length899.9 ft274.3 m
Daily traffic4,200counted 2024
Last inspectedApril 2024every 24 months

Location

StateFlorida
CountyMiami-Dade
LocationDowntown Intrchg
CarriesS Miami AVE - I-95
CrossesSr-970 To SW 1st Ct
Coordinates25.77279, -80.19622

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length899.9 ft (274.3 m)
Max Span104.0 ft (31.7 m)
Deck Width28.2 ft (8.6 m)
Deck Area2359.0 sq m
Main Spans12
Year Built1969

Traffic

Avg Daily Traffic4,200 (2024)
Truck Traffic2%
Lanes On Bridge1
Lanes Under Bridge8

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number870555

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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