BROAD STREET
Carrying BROAD STREET over CEDAR CREEK CHANNEL
N.OF WATER ST., Knox, Illinois
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: BROAD STREET
The BROAD STREET bridge in Knox, Illinois carries BROAD STREET over CEDAR CREEK CHANNEL. It was built in 1930, making it 96 years old today. It was last reconstructed in 1997, extending its service life. The structure is built primarily of prestressed concrete and spans 1 section, stretching 11.9 meters (39 feet) end to end. Daily traffic averages 1,550 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 7/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 67.1 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How BROAD STREET compares
Live comparison across Illinois.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1930
- Last Reconstructed
- 1997
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 11.9 m (39 ft)
- Deck Width
- 19.6 m (64 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 1,550 vehicles/day
- Structure Number
- 048601100000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
How to read this record
This page shows what the last federal inspection recorded, not whether BROAD STREET 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 BROAD STREET 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 BROAD STREET?
BROAD STREET in Knox, Illinois has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is BROAD STREET inspected?
BROAD STREET'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 1,550 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. BROAD STREET is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for BROAD STREET?
BROAD STREET has an NBI inventory load rating of 67.1 metric tons.
Who is responsible for maintaining BROAD STREET?
BROAD STREET is owned and maintained by City/Municipal Highway Agency.
How old is BROAD STREET and does age affect safety?
BROAD STREET was built in 1930, making it 96 years old and last reconstructed in 1997.
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.
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.