FHWA NBI 2024 Inspection record Public-domain dataset

BAY ROAD

Carrying BAY ROAD over LAPLATTE RIVER

1.0 MI TO JCT W US7, Chittenden, Vermont

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
17 t Inventory load rating

Bridge Snapshot: BAY ROAD

The BAY ROAD bridge in Chittenden, Vermont carries BAY ROAD over LAPLATTE RIVER. It was built in 1948, making it 78 years old today. The structure is built primarily of steel and spans 1 section, stretching 27.1 meters (89 feet) end to end. Daily traffic averages 3,000 vehicles, placing it in the moderately-trafficked tier of Vermont bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 6/9, substructure at 5/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 17.2 metric tons.

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

How BAY ROAD compares

▼ 19.5
Load rating vs Vermont average (36.7 t)
Bottom 13%
Lower load rating than 87% of Vermont bridges
192
Bridges in Chittenden · 2 in Poor condition
BAY ROAD 17.2 t
Vermont average 36.7 t

Live comparison across Vermont.

Historical Sufficiency Rating

PlainBridge-computed
45.9 / 100 - historical 20–49.9 band
Structural adequacy /55
25.7
Serviceability /30
8.0
Essentiality /15
12.2
Special reductions
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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
17.2 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1948
Material
Steel
Number of Spans
1
Structure Length
27.1 m (89 ft)
Deck Width
8.4 m (28 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
3,000 vehicles/day
Structure Number
205704000704132

Condition Analysis

  • The deck (driving surface) rates fair at 5/9, minor deterioration that routine maintenance should address.
  • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • The substructure (piers and abutments) rates fair at 5/9, minor deterioration that routine maintenance should address.

How to read this record

This page shows what the last federal inspection recorded, not whether BAY ROAD 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 BAY ROAD against other structures in Chittenden 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 BAY ROAD?

BAY ROAD in Chittenden, Vermont has a deck rating of 5/9, superstructure rating of 6/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is BAY ROAD inspected?

BAY ROAD'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 3,000 vehicles per day.

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

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

BAY ROAD has an NBI inventory load rating of 17.2 metric tons.

Who is responsible for maintaining BAY ROAD?

BAY ROAD is owned and maintained by City/Municipal Highway Agency.

How old is BAY ROAD and does age affect safety?

BAY ROAD was built in 1948, making it 78 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.