NW 17th Avenue
Carrying NW 17th Avenue over Miami River
0.2 Mile North of SR 836, Miami-Dade, Florida
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
NW 17th Avenue in Miami-Dade, Florida sits above 6% of rated Florida bridges on inventory load rating (21 t), while its 1928 build year is earlier than 98% of Miami-Dade's recorded-year cohort (1,057 bridges).
NW 17th Avenue in Miami-Dade, Florida is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1928, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 5. The lowest applicable rating sets the federal condition category, so this Fair result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure FL:874161
PRE-1950 · STEEL · SINGLE-SPAN · TIED-CTRL · HEAVY-ADT · STANDARD-LOAD · CAT-FAIR
- PRE-1950 Pre-1950
- STEEL Steel
- SINGLE-SPAN Single span
- TIED-CTRL Tied control
- HEAVY-ADT Heavy ADT
- STANDARD-LOAD Standard load
- CAT-FAIR Fair
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: NW 17th Avenue
The NW 17th Avenue bridge in Miami-Dade, Florida carries NW 17th Avenue over Miami River. It was built in 1928, making it 98 years old today. The structure is built primarily of steel and spans 1 section, stretching 119.8 meters (393 feet) end to end. Daily traffic averages 21,073 vehicles, placing it in the heavily-trafficked tier of Florida bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range.
How NW 17th Avenue compares
Age against the county: built in 1928, earlier than 1,035 of Miami-Dade's 1,057 bridges with a recorded construction year (98%), against a county median build year of 1973. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Florida bridges with a recorded inventory load rating (13,032 of 13,036 rated).
NW 17th Avenue vs every rated Florida bridge
Inventory load rating (metric tons), FHWA NBI, this state
21 Top 94% higher than 6% of 13,032 bridges
rated Florida bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Miami-Dade inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 1,057 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1928
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 119.8 m (393 ft)
- Deck Width
- 18.3 m (60 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 21,073 vehicles/day
- Structure Number
- 874161
Condition Analysis
- • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
- • The superstructure (beams and supports above the deck) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether NW 17th Avenue is safe to cross today. Here is how to use it.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
- Compare NW 17th Avenue against other structures in Miami-Dade and across Florida. Florida bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for NW 17th Avenue?
NW 17th Avenue in Miami-Dade, Florida has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is NW 17th Avenue inspected?
NW 17th Avenue's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 21,073 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. NW 17th Avenue is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for NW 17th Avenue?
NW 17th Avenue has an NBI inventory load rating of 21.4 metric tons.
Who is responsible for maintaining NW 17th Avenue?
NW 17th Avenue is owned and maintained by County Highway Agency.
How old is NW 17th Avenue and does age affect safety?
NW 17th Avenue was built in 1928, making it 98 years old.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.