FHWA NBI 2024 Inspection record Public-domain dataset

C30WC

Carrying C30WC over LAMOILLE RIVER

@ JCT W CL1 TH1, Caledonia, Vermont

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
40 t Inventory load rating

Bridge Snapshot: C30WC

The C30WC bridge in Caledonia, Vermont carries C30WC over LAMOILLE RIVER. It was built in 1965, making it 61 years old today. The structure is built primarily of steel and spans 1 section, stretching 30.2 meters (99 feet) end to end. Daily traffic averages 750 vehicles, placing it in the lower-traffic tier of Vermont bridges. It is owned and maintained by Town/Township Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 39.9 metric tons.

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

How C30WC compares

▲ 3.2
Load rating vs Vermont average (36.7 t)
Top 41%
Higher load rating than 59% of Vermont bridges
251
Bridges in Caledonia · 4 in Poor condition
C30WC 39.9 t
Vermont average 36.7 t

Live comparison across Vermont.

Historical Sufficiency Rating

PlainBridge-computed
79.9 / 100 - historical 50–79.9 band
Structural adequacy /55
55.0
Serviceability /30
13.0
Essentiality /15
14.9
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 How the historical reference is calculated.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

Deck
6/9
Fair (5–6)
Superstructure
7/9
Good (7–9)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
39.9 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1965
Material
Steel
Number of Spans
1
Structure Length
30.2 m (99 ft)
Deck Width
8.8 m (29 ft)
Owner
Town/Township Highway Agency
Avg Daily Traffic
750 vehicles/day
Structure Number
100305004303051

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) rates good at 7/9, with no significant deterioration on file.
  • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether C30WC 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 C30WC 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 C30WC?

C30WC in Caledonia, Vermont has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is C30WC inspected?

C30WC'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 750 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. C30WC 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 C30WC?

C30WC has an NBI inventory load rating of 39.9 metric tons.

Who is responsible for maintaining C30WC?

C30WC is owned and maintained by Town/Township Highway Agency.

How old is C30WC and does age affect safety?

C30WC 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.