FHWA NBI 2024 Inspection record Public-domain dataset

VERNON AVENUE

Carrying VERNON AVENUE over SUGAR CREEK N BRANCH

1.3 MI NNE 150 & 51, McLean, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
30 t Inventory load rating

Bridge Snapshot: VERNON AVENUE

The VERNON AVENUE bridge in McLean, Illinois carries VERNON AVENUE over SUGAR CREEK N BRANCH. It was built in 1968, making it 58 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 10.6 meters (35 feet) end to end. Daily traffic averages 8,650 vehicles, placing it in the moderately-trafficked tier of Illinois bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show culvert at 4/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 29.8 metric tons.

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

How VERNON AVENUE compares

▼ 4.8
Load rating vs Illinois average (34.6 t)
Bottom 20%
Lower load rating than 80% of Illinois bridges
624
Bridges in McLean · 11 in Poor condition
VERNON AVENUE 29.8 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
47.8 / 100 - historical 20–49.9 band
Structural adequacy /55
28.6
Serviceability /30
9.0
Essentiality /15
13.2
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Inventory Load Rating
29.8 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1968
Material
Concrete Continuous
Number of Spans
2
Structure Length
10.6 m (35 ft)
Deck Width
18.3 m (60 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
8,650 vehicles/day
Structure Number
057780100000000

How to read this record

VERNON AVENUE 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 VERNON AVENUE against other structures in McLean 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 VERNON AVENUE?

VERNON AVENUE in McLean, Illinois on the FHWA's 0–9 scale.

How often is VERNON AVENUE inspected?

VERNON AVENUE'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 8,650 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. VERNON AVENUE 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 VERNON AVENUE?

VERNON AVENUE has an NBI inventory load rating of 29.8 metric tons.

Who is responsible for maintaining VERNON AVENUE?

VERNON AVENUE is owned and maintained by City/Municipal Highway Agency.

How old is VERNON AVENUE and does age affect safety?

VERNON AVENUE was built in 1968, making it 58 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.