FHWA NBI 2024 Inspection record Public-domain dataset

I 00091 ML

Carrying I 00091 ML over I 91SB OVER VT973 - CONN

I 91 EXIT 22, Caledonia, Vermont

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Unknown

Bridge Snapshot: I 00091 ML

The I 00091 ML bridge in Caledonia, Vermont carries I 00091 ML over I 91SB OVER VT973 - CONN. It was built in 1975, making it 51 years old today. The structure is built primarily of steel. Daily traffic averages 4,200 vehicles, placing it in the moderately-trafficked tier of Vermont bridges.

The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. All reported major components score above the Poor range.

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

How I 00091 ML compares

251
Bridges in Caledonia · 4 in Poor condition

Live comparison across Vermont.

Historical Sufficiency Rating

PlainBridge-computed
88.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
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 How the historical reference is calculated.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
1975
Material
Steel
Avg Daily Traffic
4,200 vehicles/day
Structure Number
200091090S03112

How to read this record

This page shows what the last federal inspection recorded, not whether I 00091 ML 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 00091 ML against other structures in Caledonia and across Vermont. Vermont 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 00091 ML?

I 00091 ML in Caledonia, Vermont on the FHWA's 0–9 scale.

How often is I 00091 ML inspected?

I 00091 ML'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 4,200 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. I 00091 ML 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 00091 ML?

An inventory load rating is not recorded for I 00091 ML.

Who is responsible for maintaining I 00091 ML?

Ownership is not specified for I 00091 ML in the NBI.

How old is I 00091 ML and does age affect safety?

I 00091 ML was built in 1975, making it 51 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.