FHWA NBI 2024 Inspection record Public-domain dataset

FAU 8998/SEMINARY

Carrying FAU 8998/SEMINARY over TRIB TO HONEY BR

1.0 MI N OF ALTON, Madison, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
56 t Inventory load rating

Bridge Snapshot: FAU 8998/SEMINARY

The FAU 8998/SEMINARY bridge in Madison, Illinois carries FAU 8998/SEMINARY over TRIB TO HONEY BR. It was built in 1980, making it 46 years old today. It was last reconstructed in 2016, extending its service life. The structure is built primarily of steel continuous and spans 3 sections, stretching 33.8 meters (111 feet) end to end. Daily traffic averages 5,300 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 8/9, superstructure at 8/9, substructure at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 56.4 metric tons.

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

How FAU 8998/SEMINARY compares

▲ 21.8
Load rating vs Illinois average (34.6 t)
Top 4%
Higher load rating than 96% of Illinois bridges
543
Bridges in Madison · 35 in Poor condition
FAU 8998/SEMINARY 56.4 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
97.5 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
29.0
Essentiality /15
13.5
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 How the historical reference is calculated.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
8/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
56.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1980
Last Reconstructed
2016
Material
Steel Continuous
Number of Spans
3
Structure Length
33.8 m (111 ft)
Deck Width
13.2 m (43 ft)
Owner
County Highway Agency
Avg Daily Traffic
5,300 vehicles/day
Structure Number
060322900000000

Condition Analysis

  • The deck (driving surface) is in good condition (8/9), showing no significant deterioration.
  • The superstructure (beams and supports above the deck) rates good at 8/9, with no significant deterioration on file.
  • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether FAU 8998/SEMINARY 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 FAU 8998/SEMINARY 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 FAU 8998/SEMINARY?

FAU 8998/SEMINARY in Madison, Illinois has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is FAU 8998/SEMINARY inspected?

FAU 8998/SEMINARY'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 5,300 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. FAU 8998/SEMINARY 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 FAU 8998/SEMINARY?

FAU 8998/SEMINARY has an NBI inventory load rating of 56.4 metric tons.

Who is responsible for maintaining FAU 8998/SEMINARY?

FAU 8998/SEMINARY is owned and maintained by County Highway Agency.

How old is FAU 8998/SEMINARY and does age affect safety?

FAU 8998/SEMINARY was built in 1980, making it 46 years old and last reconstructed in 2016.

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.