CR 646(UNION AVE)
Carrying CR 646(UNION AVE) over INTAKE CANAL & AQUEDUCTS
0.69MI. SW OF RT US 46, Passaic, New Jersey
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
CR 646(UNION AVE) in Passaic, New Jersey sits above 57% of rated New Jersey bridges on inventory load rating (44 t), while its 1916 build year is earlier than 92% of Passaic's recorded-year cohort (333 bridges).
CR 646(UNION AVE) in Passaic, New Jersey is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1916, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good 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 NJ:1600154
PRE-1950 · PRESTRESS · MULTI-SPAN · TIED-CTRL · HEAVY-ADT · HEAVY-LOAD · CAT-GOOD
- PRE-1950 Pre-1950
- PRESTRESS Prestressed concrete
- MULTI-SPAN 2 spans
- TIED-CTRL Tied control
- HEAVY-ADT Heavy ADT
- HEAVY-LOAD Heavy load
- CAT-GOOD Good
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: CR 646(UNION AVE)
The CR 646(UNION AVE) bridge in Passaic, New Jersey carries CR 646(UNION AVE) over INTAKE CANAL & AQUEDUCTS. It was built in 1916, making it 110 years old today. It was last reconstructed in 1995, extending its service life. The structure is built primarily of prestressed concrete and spans 2 sections, stretching 33.8 meters (111 feet) end to end. Daily traffic averages 18,019 vehicles, placing it in the heavily-trafficked tier of New Jersey bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range.
How CR 646(UNION AVE) compares
Age against the county: built in 1916, earlier than 305 of Passaic's 333 bridges with a recorded construction year (92%), against a county median build year of 1963. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across New Jersey bridges with a recorded inventory load rating (6,826 of 6,827 rated).
CR 646(UNION AVE) vs every rated New Jersey bridge
Inventory load rating (metric tons), FHWA NBI, this state
44 Top 43% higher than 57% of 6,826 bridges
rated New Jersey 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.
Passaic inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 333 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
- 1916
- Last Reconstructed
- 1995
- Material
- Prestressed Concrete
- Number of Spans
- 2
- Structure Length
- 33.8 m (111 ft)
- Deck Width
- 18.3 m (60 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 18,019 vehicles/day
- Structure Number
- 1600154
Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
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 CR 646(UNION AVE) 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 CR 646(UNION AVE) against other structures in Passaic and across New Jersey. New Jersey 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 CR 646(UNION AVE)?
CR 646(UNION AVE) in Passaic, New Jersey has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is CR 646(UNION AVE) inspected?
CR 646(UNION AVE)'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 18,019 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. CR 646(UNION AVE) is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for CR 646(UNION AVE)?
CR 646(UNION AVE) has an NBI inventory load rating of 43.5 metric tons.
Who is responsible for maintaining CR 646(UNION AVE)?
CR 646(UNION AVE) is owned and maintained by County Highway Agency.
How old is CR 646(UNION AVE) and does age affect safety?
CR 646(UNION AVE) was built in 1916, making it 110 years old and last reconstructed in 1995.
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.