FHWA NBI 2024 Inspection record Public-domain dataset

MCCLURE ST

Carrying MCCLURE ST over CEDAR CREEK

SOUTH OF W. MAIN ST., Knox, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
25 t Inventory load rating

Bridge Snapshot: MCCLURE ST

The MCCLURE ST bridge in Knox, Illinois carries MCCLURE ST over CEDAR CREEK. It was built in 1956, making it 70 years old today. The structure is built primarily of concrete and spans 1 section, stretching 13.1 meters (43 feet) end to end. Daily traffic averages 1,850 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 a deck rating of 6/9, superstructure at 3/9, substructure at 7/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 24.9 metric tons.

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

How MCCLURE ST compares

▼ 9.7
Load rating vs Illinois average (34.6 t)
Bottom 13%
Lower load rating than 87% of Illinois bridges
321
Bridges in Knox · 19 in Poor condition
MCCLURE ST 24.9 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
36.0 / 100 - historical 20–49.9 band
Structural adequacy /55
8.3
Serviceability /30
13.4
Essentiality /15
14.3
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
3/9
Poor (1–4)
Substructure
7/9
Good (7–9)
Inventory Load Rating
24.9 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1956
Material
Concrete
Number of Spans
1
Structure Length
13.1 m (43 ft)
Deck Width
9.5 m (31 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
1,850 vehicles/day
Structure Number
048600600000000

Condition Analysis

  • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • At 3/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear flagged for priority repair.
  • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.

How to read this record

MCCLURE ST 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 MCCLURE ST against other structures in Knox 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 MCCLURE ST?

MCCLURE ST in Knox, Illinois has a deck rating of 6/9, superstructure rating of 3/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is MCCLURE ST inspected?

MCCLURE ST'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 1,850 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. MCCLURE ST 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 MCCLURE ST?

MCCLURE ST has an NBI inventory load rating of 24.9 metric tons.

Who is responsible for maintaining MCCLURE ST?

MCCLURE ST is owned and maintained by City/Municipal Highway Agency.

How old is MCCLURE ST and does age affect safety?

MCCLURE ST was built in 1956, making it 70 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.