Old US 34
Carrying Old US 34 over S HENDERSON CREEK
0.3 MI E OF ILL 94, Henderson, Illinois
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: Old US 34
The Old US 34 bridge in Henderson, Illinois carries Old US 34 over S HENDERSON CREEK. It was built in 1921, making it 105 years old today. It was last reconstructed in 1971, extending its service life. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 61.3 meters (201 feet) end to end. Daily traffic averages 200 vehicles, placing it in the lower-traffic tier of Illinois bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 2/9, superstructure at 2/9, substructure at 5/9. The weakest component sits in critical 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 22.0 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How Old US 34 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 How the historical reference is calculated.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
- 1921
- Last Reconstructed
- 1971
- Material
- Prestressed Concrete
- Number of Spans
- 3
- Structure Length
- 61.3 m (201 ft)
- Deck Width
- 10.2 m (33 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 200 vehicles/day
- Structure Number
- 036002800000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates critical at 2/9, severe deterioration that needs urgent attention.
- • The superstructure (beams and supports above the deck) rates critical at 2/9, severe deterioration that needs urgent attention.
- • The substructure (piers and abutments) rates fair at 5/9, minor deterioration that routine maintenance should address.
How to read this record
Old US 34 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 Old US 34 against other structures in Henderson 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 Old US 34?
Old US 34 in Henderson, Illinois has a deck rating of 2/9, superstructure rating of 2/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is Old US 34 inspected?
Old US 34'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 200 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. Old US 34 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 Old US 34?
Old US 34 has an NBI inventory load rating of 22.0 metric tons.
Who is responsible for maintaining Old US 34?
Old US 34 is owned and maintained by State Highway Agency.
How old is Old US 34 and does age affect safety?
Old US 34 was built in 1921, making it 105 years old and last reconstructed in 1971.
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.