FHWA NBI 2024 Inspection record Public-domain dataset

Marine Road-FAS 77

Carrying Marine Road-FAS 77 over East Fork SILVER CRK

1.4 mi N. of US 40, Madison, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
48 t Inventory load rating

Bridge Snapshot: Marine Road-FAS 77

The Marine Road-FAS 77 bridge in Madison, Illinois carries Marine Road-FAS 77 over East Fork SILVER CRK. It was built in 1993, making it 33 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 33.5 meters (110 feet) end to end. Daily traffic averages 800 vehicles, placing it in the lower-traffic tier of Illinois bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 8/9. 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 48.0 metric tons.

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

How Marine Road-FAS 77 compares

▲ 13.4
Load rating vs Illinois average (34.6 t)
Top 9%
Higher load rating than 91% of Illinois bridges
543
Bridges in Madison · 35 in Poor condition
Marine Road-FAS 77 48.0 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
89.9 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
20.9
Essentiality /15
14.0
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 How the historical reference is calculated.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
8/9
Good (7–9)
Inventory Load Rating
48.0 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
Concrete Continuous
Number of Spans
3
Structure Length
33.5 m (110 ft)
Deck Width
9.1 m (30 ft)
Owner
State Highway Agency
Avg Daily Traffic
800 vehicles/day
Structure Number
060026600000000

Condition Analysis

  • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
  • 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 8/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether Marine Road-FAS 77 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 Marine Road-FAS 77 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 Marine Road-FAS 77?

Marine Road-FAS 77 in Madison, Illinois has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is Marine Road-FAS 77 inspected?

Marine Road-FAS 77'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 800 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Marine Road-FAS 77 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 Marine Road-FAS 77?

Marine Road-FAS 77 has an NBI inventory load rating of 48.0 metric tons.

Who is responsible for maintaining Marine Road-FAS 77?

Marine Road-FAS 77 is owned and maintained by State Highway Agency.

How old is Marine Road-FAS 77 and does age affect safety?

Marine Road-FAS 77 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.