FHWA NBI 2024 Inspection record Public-domain dataset

CHICAGO RD

Carrying CHICAGO RD over INDIAN CREEK

4.5 MI S OF SHABBONA, DeKalb, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
57 t Inventory load rating

Bridge Snapshot: CHICAGO RD

The CHICAGO RD bridge in DeKalb, Illinois carries CHICAGO RD over INDIAN CREEK. It was built in 1969, making it 57 years old today. It was last reconstructed in 2003, extending its service life. The structure is built primarily of steel continuous and spans 3 sections, stretching 31.6 meters (104 feet) end to end. Daily traffic averages 900 vehicles, placing it in the lower-traffic tier of Illinois bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 57.3 metric tons.

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

How CHICAGO RD compares

▲ 22.7
Load rating vs Illinois average (34.6 t)
Top 4%
Higher load rating than 96% of Illinois bridges
264
Bridges in DeKalb · 33 in Poor condition
CHICAGO RD 57.3 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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
57.3 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1969
Last Reconstructed
2003
Material
Steel Continuous
Number of Spans
3
Structure Length
31.6 m (104 ft)
Deck Width
9.8 m (32 ft)
Owner
County Highway Agency
Avg Daily Traffic
900 vehicles/day
Structure Number
019301000000000

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • 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) 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 CHICAGO RD 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 CHICAGO RD against other structures in DeKalb 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 CHICAGO RD?

CHICAGO RD in DeKalb, Illinois has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is CHICAGO RD inspected?

CHICAGO RD'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 900 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. CHICAGO RD 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 CHICAGO RD?

CHICAGO RD has an NBI inventory load rating of 57.3 metric tons.

Who is responsible for maintaining CHICAGO RD?

CHICAGO RD is owned and maintained by County Highway Agency.

How old is CHICAGO RD and does age affect safety?

CHICAGO RD was built in 1969, making it 57 years old and last reconstructed in 2003.

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.