FHWA NBI 2024 Inspection record Public-domain dataset

FAS 1937 Troy-O'Fl

Carrying FAS 1937 Troy-O'Fl over Mill Creek

3.3 Mi S of Troy, Madison, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
37 t Inventory load rating

Bridge Snapshot: FAS 1937 Troy-O'Fl

The FAS 1937 Troy-O'Fl bridge in Madison, Illinois carries FAS 1937 Troy-O'Fl over Mill Creek. It was built in 2022, making it 4 years old today. The structure is built primarily of steel and spans 1 section, stretching 25.5 meters (84 feet) end to end. Daily traffic averages 8,050 vehicles, placing it in the moderately-trafficked tier of Illinois bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 9/9, superstructure at 9/9, substructure at 9/9. 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 36.9 metric tons.

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

How FAS 1937 Troy-O'Fl compares

▲ 2.3
Load rating vs Illinois average (34.6 t)
Top 25%
Higher load rating than 75% of Illinois bridges
543
Bridges in Madison · 35 in Poor condition
FAS 1937 Troy-O'Fl 36.9 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
97.1 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
29.0
Essentiality /15
13.1
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 How the historical reference is calculated.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
9/9
Good (7–9)
Superstructure
9/9
Good (7–9)
Substructure
9/9
Good (7–9)
Inventory Load Rating
36.9 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2022
Material
Steel
Number of Spans
1
Structure Length
25.5 m (84 ft)
Deck Width
12.2 m (40 ft)
Owner
County Highway Agency
Avg Daily Traffic
8,050 vehicles/day
Structure Number
060337300000000

Condition Analysis

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

How to read this record

This page shows what the last federal inspection recorded, not whether FAS 1937 Troy-O'Fl 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 FAS 1937 Troy-O'Fl against other structures in Madison and across Illinois. Illinois 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 FAS 1937 Troy-O'Fl?

FAS 1937 Troy-O'Fl in Madison, Illinois has a deck rating of 9/9, superstructure rating of 9/9, and substructure rating of 9/9 on the FHWA's 0–9 scale.

How often is FAS 1937 Troy-O'Fl inspected?

FAS 1937 Troy-O'Fl'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 8,050 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. FAS 1937 Troy-O'Fl 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 FAS 1937 Troy-O'Fl?

FAS 1937 Troy-O'Fl has an NBI inventory load rating of 36.9 metric tons.

Who is responsible for maintaining FAS 1937 Troy-O'Fl?

FAS 1937 Troy-O'Fl is owned and maintained by County Highway Agency.

How old is FAS 1937 Troy-O'Fl and does age affect safety?

FAS 1937 Troy-O'Fl was built in 2022, making it 4 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.