FHWA NBI 2024 Inspection record Public-domain dataset

TR 3B MINOOKA ROAD

Carrying TR 3B MINOOKA ROAD over SARATOGA CREEK

0.36 MI E LISBON RD, Grundy, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
18 t Inventory load rating

Bridge Snapshot: TR 3B MINOOKA ROAD

The TR 3B MINOOKA ROAD bridge in Grundy, Illinois carries TR 3B MINOOKA ROAD over SARATOGA CREEK. It was built in 1984, making it 42 years old today. The structure is built primarily of steel and spans 3 sections, stretching 8.2 meters (27 feet) end to end. Daily traffic averages 300 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 culvert at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 17.5 metric tons.

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

How TR 3B MINOOKA ROAD compares

▼ 17.1
Load rating vs Illinois average (34.6 t)
Bottom 3%
Lower load rating than 97% of Illinois bridges
269
Bridges in Grundy · 65 in Poor condition
TR 3B MINOOKA ROAD 17.5 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
64.2 / 100 - historical 50–79.9 band
Structural adequacy /55
36.3
Serviceability /30
16.2
Essentiality /15
14.7
Special reductions
−3.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Culvert
6/9
Fair (5–6)
Inventory Load Rating
17.5 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1984
Material
Steel
Number of Spans
3
Structure Length
8.2 m (27 ft)
Deck Width
7.3 m (24 ft)
Owner
Town/Township Highway Agency
Avg Daily Traffic
300 vehicles/day
Structure Number
032375600000000

How to read this record

This page shows what the last federal inspection recorded, not whether TR 3B MINOOKA ROAD 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 TR 3B MINOOKA ROAD 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 TR 3B MINOOKA ROAD?

TR 3B MINOOKA ROAD in Grundy, Illinois on the FHWA's 0–9 scale.

How often is TR 3B MINOOKA ROAD inspected?

TR 3B MINOOKA ROAD'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 300 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. TR 3B MINOOKA ROAD is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for TR 3B MINOOKA ROAD?

TR 3B MINOOKA ROAD has an NBI inventory load rating of 17.5 metric tons.

Who is responsible for maintaining TR 3B MINOOKA ROAD?

TR 3B MINOOKA ROAD is owned and maintained by Town/Township Highway Agency.

How old is TR 3B MINOOKA ROAD and does age affect safety?

TR 3B MINOOKA ROAD 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.

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.