FHWA NBI 2024 Inspection record Public-domain dataset

IL 47 FAP 326

Carrying IL 47 FAP 326 over SARATOGA CREEK

0.38 MI N/NELSON RD, Grundy, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
52 t Inventory load rating

Bridge Snapshot: IL 47 FAP 326

The IL 47 FAP 326 bridge in Grundy, Illinois carries IL 47 FAP 326 over SARATOGA CREEK. It was built in 2016, making it 10 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 31.4 meters (103 feet) end to end. Daily traffic averages 6,900 vehicles, placing it in the moderately-trafficked tier of Illinois bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 8/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 51.8 metric tons.

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

How IL 47 FAP 326 compares

▲ 17.2
Load rating vs Illinois average (34.6 t)
Top 6%
Higher load rating than 94% of Illinois bridges
269
Bridges in Grundy · 65 in Poor condition
IL 47 FAP 326 51.8 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
99.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
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 How the historical reference is calculated.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
8/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
51.8 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2016
Material
Prestressed Concrete
Number of Spans
1
Structure Length
31.4 m (103 ft)
Deck Width
33.9 m (111 ft)
Owner
State Highway Agency
Avg Daily Traffic
6,900 vehicles/day
Structure Number
032012200000000

Condition Analysis

  • At 8/9, the deck (driving surface) is in good shape and shows no significant wear.
  • At 8/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • At 8/9, the substructure (piers and abutments) is in good shape and shows no significant wear.

How to read this record

This page shows what the last federal inspection recorded, not whether IL 47 FAP 326 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 IL 47 FAP 326 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 IL 47 FAP 326?

IL 47 FAP 326 in Grundy, Illinois has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is IL 47 FAP 326 inspected?

IL 47 FAP 326'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 6,900 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. IL 47 FAP 326 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 IL 47 FAP 326?

IL 47 FAP 326 has an NBI inventory load rating of 51.8 metric tons.

Who is responsible for maintaining IL 47 FAP 326?

IL 47 FAP 326 is owned and maintained by State Highway Agency.

How old is IL 47 FAP 326 and does age affect safety?

IL 47 FAP 326 was built in 2016, making it 10 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.