NJ 29 to PA 32
Carrying NJ 29 to PA 32 over DELAWARE RIVER
NJ 29 @ MP 4.34, Mercer, New Jersey
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: NJ 29 to PA 32
The NJ 29 to PA 32 bridge in Mercer, New Jersey carries NJ 29 to PA 32 over DELAWARE RIVER. It was built in 1884, making it 142 years old today. It was last reconstructed in 2010, extending its service life. The structure is built primarily of aluminum/iron and spans 7 sections, stretching 389.2 meters (1277 feet) end to end. Daily traffic averages 16,500 vehicles, placing it in the heavily-trafficked tier of New Jersey bridges. It is owned and maintained by Local Toll Authority.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 21.0 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How NJ 29 to PA 32 compares
Live comparison across New Jersey.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1884
- Last Reconstructed
- 2010
- Material
- Aluminum/Iron
- Number of Spans
- 7
- Structure Length
- 389.2 m (1277 ft)
- Deck Width
- 6.3 m (21 ft)
- Owner
- Local Toll Authority
- Avg Daily Traffic
- 16,500 vehicles/day
- Structure Number
- 3300060
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
How to read this record
This page shows what the last federal inspection recorded, not whether NJ 29 to PA 32 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 NJ 29 to PA 32 against other structures in Mercer 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 NJ 29 to PA 32?
NJ 29 to PA 32 in Mercer, New Jersey has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is NJ 29 to PA 32 inspected?
NJ 29 to PA 32'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 16,500 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. NJ 29 to PA 32 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 NJ 29 to PA 32?
NJ 29 to PA 32 has an NBI inventory load rating of 21.0 metric tons.
Who is responsible for maintaining NJ 29 to PA 32?
NJ 29 to PA 32 is owned and maintained by Local Toll Authority.
How old is NJ 29 to PA 32 and does age affect safety?
NJ 29 to PA 32 was built in 1884, making it 142 years old and last reconstructed in 2010.
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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.