NAUGATUCK AVENUE
Carrying NAUGATUCK AVENUE over METRO NORTH RAILROAD
100' NORTH OF I-95, New Haven, Connecticut
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: NAUGATUCK AVENUE
The NAUGATUCK AVENUE bridge in New Haven, Connecticut carries NAUGATUCK AVENUE over METRO NORTH RAILROAD. It was built in 1929, making it 97 years old today. It was last reconstructed in 1992, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 30.2 meters (99 feet) end to end. Daily traffic averages 3,790 vehicles, placing it in the moderately-trafficked tier of Connecticut bridges. It is owned and maintained by Unknown.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 4/9, substructure at 6/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 25.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How NAUGATUCK AVENUE compares
Live comparison across Connecticut.
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 How the historical reference is calculated.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
- 1929
- Last Reconstructed
- 1992
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 30.2 m (99 ft)
- Deck Width
- 7.8 m (26 ft)
- Owner
- Unknown
- Avg Daily Traffic
- 3,790 vehicles/day
- Structure Number
- 03641
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
- • The substructure (piers and abutments) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
How to read this record
NAUGATUCK AVENUE is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare NAUGATUCK AVENUE against other structures in New Haven and across Connecticut. Connecticut 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 NAUGATUCK AVENUE?
NAUGATUCK AVENUE in New Haven, Connecticut has a deck rating of 6/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is NAUGATUCK AVENUE inspected?
NAUGATUCK 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 3,790 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. NAUGATUCK AVENUE is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for NAUGATUCK AVENUE?
NAUGATUCK AVENUE has an NBI inventory load rating of 25.4 metric tons.
Who is responsible for maintaining NAUGATUCK AVENUE?
NAUGATUCK AVENUE is owned and maintained by Unknown.
How old is NAUGATUCK AVENUE and does age affect safety?
NAUGATUCK AVENUE was built in 1929, making it 97 years old and last reconstructed in 1992.
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.