CH61/AIRPORT ROAD
Carrying CH61/AIRPORT ROAD over PIASA CREEK
1.1MI S JERSEY CO LN, Madison, Illinois
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: CH61/AIRPORT ROAD
The CH61/AIRPORT ROAD bridge in Madison, Illinois carries CH61/AIRPORT ROAD over PIASA CREEK. It was built in 1958, making it 68 years old today. It was last reconstructed in 1987, extending its service life. The structure is built primarily of prestressed concrete and spans 2 sections, stretching 56.4 meters (185 feet) end to end. Daily traffic averages 650 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 5/9, superstructure at 5/9, substructure at 4/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 33.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How CH61/AIRPORT ROAD 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 How the historical reference is calculated.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
- 1958
- Last Reconstructed
- 1987
- Material
- Prestressed Concrete
- Number of Spans
- 2
- Structure Length
- 56.4 m (185 ft)
- Deck Width
- 8.2 m (27 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 650 vehicles/day
- Structure Number
- 060301000000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • The superstructure (beams and supports above the deck) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
- • The substructure (piers and abutments) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
How to read this record
CH61/AIRPORT ROAD 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 CH61/AIRPORT ROAD against other structures in Madison 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 CH61/AIRPORT ROAD?
CH61/AIRPORT ROAD in Madison, Illinois has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is CH61/AIRPORT ROAD inspected?
CH61/AIRPORT ROAD'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 650 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. CH61/AIRPORT ROAD 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 CH61/AIRPORT ROAD?
CH61/AIRPORT ROAD has an NBI inventory load rating of 33.4 metric tons.
Who is responsible for maintaining CH61/AIRPORT ROAD?
CH61/AIRPORT ROAD is owned and maintained by County Highway Agency.
How old is CH61/AIRPORT ROAD and does age affect safety?
CH61/AIRPORT ROAD was built in 1958, making it 68 years old and last reconstructed in 1987.
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.