FHWA NBI 2024 Inspection record Public-domain dataset

BIA RTE 407

Carrying BIA RTE 407 over UNNAMED STREAM

4.9KM NE LEYARD, CT, New London, Connecticut

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
32 t Inventory load rating

Bridge Snapshot: BIA RTE 407

The BIA RTE 407 bridge in New London, Connecticut carries BIA RTE 407 over UNNAMED STREAM. It was built in 1993, making it 33 years old today. The structure is built primarily of wood or timber and spans 1 section, stretching 6.9 meters (23 feet) end to end. Daily traffic averages 1,000 vehicles, placing it in the lower-traffic tier of Connecticut bridges. It is owned and maintained by Bureau of Indian Affairs.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 32.2 metric tons.

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

How BIA RTE 407 compares

▼ 12.7
Load rating vs Connecticut average (44.9 t)
Bottom 17%
Lower load rating than 83% of Connecticut bridges
431
Bridges in New London · 16 in Poor condition
BIA RTE 407 32.2 t
Connecticut average 44.9 t

Live comparison across Connecticut.

Historical Sufficiency Rating

PlainBridge-computed
99.2 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
29.4
Essentiality /15
14.8
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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
32.2 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1993
Material
Wood or Timber
Number of Spans
1
Structure Length
6.9 m (23 ft)
Deck Width
11.7 m (38 ft)
Owner
Bureau of Indian Affairs
Avg Daily Traffic
1,000 vehicles/day
Structure Number
0000S50020B4072

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether BIA RTE 407 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 BIA RTE 407 against other structures in New London 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 BIA RTE 407?

BIA RTE 407 in New London, Connecticut has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is BIA RTE 407 inspected?

BIA RTE 407'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 1,000 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. BIA RTE 407 is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for BIA RTE 407?

BIA RTE 407 has an NBI inventory load rating of 32.2 metric tons.

Who is responsible for maintaining BIA RTE 407?

BIA RTE 407 is owned and maintained by Bureau of Indian Affairs.

How old is BIA RTE 407 and does age affect safety?

BIA RTE 407 was built in 1993, making it 33 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.