MINOOKA RD FAU400
Carrying MINOOKA RD FAU400 over TRIB TO AUX SABLE CR
.32 MI E BRISBIN RD, Grundy, Illinois
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: MINOOKA RD FAU400
The MINOOKA RD FAU400 bridge in Grundy, Illinois carries MINOOKA RD FAU400 over TRIB TO AUX SABLE CR. It was built in 1984, making it 42 years old today. The structure is built primarily of concrete and spans 1 section, stretching 11.9 meters (39 feet) end to end. Daily traffic averages 600 vehicles, placing it in the lower-traffic tier of Illinois bridges. It is owned and maintained by Town/Township Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 4/9, substructure at 8/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 27.9 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How MINOOKA RD FAU400 compares
Live comparison across Illinois.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1984
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 11.9 m (39 ft)
- Deck Width
- 9.1 m (30 ft)
- Owner
- Town/Township Highway Agency
- Avg Daily Traffic
- 600 vehicles/day
- Structure Number
- 032390100000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
- • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
- • At 8/9, the substructure (piers and abutments) is in good shape and shows no significant wear.
How to read this record
MINOOKA RD FAU400 is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare MINOOKA RD FAU400 against other structures in Grundy 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 MINOOKA RD FAU400?
MINOOKA RD FAU400 in Grundy, Illinois has a deck rating of 6/9, superstructure rating of 4/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.
How often is MINOOKA RD FAU400 inspected?
MINOOKA RD FAU400'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 600 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. MINOOKA RD FAU400 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for MINOOKA RD FAU400?
MINOOKA RD FAU400 has an NBI inventory load rating of 27.9 metric tons.
Who is responsible for maintaining MINOOKA RD FAU400?
MINOOKA RD FAU400 is owned and maintained by Town/Township Highway Agency.
How old is MINOOKA RD FAU400 and does age affect safety?
MINOOKA RD FAU400 was built in 1984, making it 42 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.
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.