Structure 874161 · Miami-Dade County, FL

NW 17th Avenue over Miami River

Carries NW 17th Avenue over Miami River, 0.2 Mile North Of SR 836.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT393 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

393 ft end to end: about 5 semi-trucks nose to tail. 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 bascule bridge (drawn closed).

Built192898 years old
Length393.0 ft119.8 m
Daily traffic21,073counted 2024
Last inspectedJanuary 2024every 24 months

Location

StateFlorida
CountyMiami-Dade
Location0.2 Mile North Of SR 836
CarriesNW 17th Avenue
CrossesMiami River
Coordinates25.78553, -80.22295

Physical Characteristics

MaterialSteel
DesignMovable - Bascule
Total Length393.0 ft (119.8 m)
Max Span132.9 ft (40.5 m)
Deck Width60.0 ft (18.3 m)
Deck Area2192.3 sq m
Main Spans1
Year Built1928

Traffic

Avg Daily Traffic21,073 (2024)
Truck Traffic5%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical5 — Stable for scour
Structure Number874161

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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