FHWA NBI 2024 Inspection record Public-domain dataset

IL 154

Carrying IL 154 over MAXWELL CREEK

EAST OF SPARTA, Randolph, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
41 t Inventory load rating

Bridge Snapshot: IL 154

The IL 154 bridge in Randolph, Illinois carries IL 154 over MAXWELL CREEK. It was built in 2002, making it 24 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 18.0 meters (59 feet) end to end. Daily traffic averages 4,300 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. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 40.5 metric tons.

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

How IL 154 compares

▲ 5.9
Load rating vs Illinois average (34.6 t)
Top 18%
Higher load rating than 82% of Illinois bridges
155
Bridges in Randolph · 10 in Poor condition
IL 154 40.5 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
96.8 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
29.0
Essentiality /15
12.8
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 How the historical reference is calculated.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
40.5 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2002
Material
Prestressed Concrete
Number of Spans
1
Structure Length
18.0 m (59 ft)
Deck Width
13.0 m (43 ft)
Owner
State Highway Agency
Avg Daily Traffic
4,300 vehicles/day
Structure Number
079004700000000

Condition Analysis

  • The deck (driving surface) is in good condition (8/9), showing no significant deterioration.
  • At 8/9, 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 IL 154 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 154 against other structures in Randolph 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 154?

IL 154 in Randolph, 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 154 inspected?

IL 154'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 4,300 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. IL 154 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 154?

IL 154 has an NBI inventory load rating of 40.5 metric tons.

Who is responsible for maintaining IL 154?

IL 154 is owned and maintained by State Highway Agency.

How old is IL 154 and does age affect safety?

IL 154 was built in 2002, making it 24 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.