FHWA NBI 2024 Inspection record Public-domain dataset

I-91 TR 816

Carrying I-91 TR 816 over ROUTE 66 WB

.25 MILES EAST OF EXIT 10, New Haven, Connecticut

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Unknown

Bridge Snapshot: I-91 TR 816

The I-91 TR 816 bridge in New Haven, Connecticut carries I-91 TR 816 over ROUTE 66 WB. It was built in 1965, making it 61 years old today. The structure is built primarily of steel. Daily traffic averages 15,200 vehicles, placing it in the heavily-trafficked tier of Connecticut bridges.

The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. None of this bridge's reported major components fall into the Poor condition range.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How I-91 TR 816 compares

891
Bridges in New Haven · 23 in Poor condition

Live comparison across Connecticut.

Historical Sufficiency Rating

PlainBridge-computed
78.0 / 100 - historical 50–79.9 band
Structural adequacy /55
45.0
Serviceability /30
23.0
Essentiality /15
13.0
Special reductions
−3.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Overall Condition
Unrated

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1965
Material
Steel
Avg Daily Traffic
15,200 vehicles/day
Structure Number
01837

How to read this record

This page shows what the last federal inspection recorded, not whether I-91 TR 816 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 I-91 TR 816 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 I-91 TR 816?

I-91 TR 816 in New Haven, Connecticut on the FHWA's 0–9 scale.

How often is I-91 TR 816 inspected?

I-91 TR 816'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 15,200 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. I-91 TR 816 is currently shown as unrated condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for I-91 TR 816?

An inventory load rating is not recorded for I-91 TR 816.

Who is responsible for maintaining I-91 TR 816?

Ownership is not specified for I-91 TR 816 in the NBI.

How old is I-91 TR 816 and does age affect safety?

I-91 TR 816 was built in 1965, making it 61 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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.