OLD US 50
Carrying OLD US 50 over SUGAR CREEK BRANCH
2.7 W OF AVISTON, Clinton, Illinois
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: OLD US 50
The OLD US 50 bridge in Clinton, Illinois carries OLD US 50 over SUGAR CREEK BRANCH. It was built in 1999, making it 27 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 12.5 meters (41 feet) end to end. Daily traffic averages 3,550 vehicles, placing it in the moderately-trafficked tier of Illinois bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert at 8/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 34.3 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How OLD US 50 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 How the historical reference is calculated.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
- 1999
- Material
- Concrete
- Number of Spans
- 3
- Structure Length
- 12.5 m (41 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 3,550 vehicles/day
- Structure Number
- 014202000000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether OLD US 50 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 OLD US 50 against other structures in Clinton 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 50?
OLD US 50 in Clinton, Illinois on the FHWA's 0–9 scale.
How often is OLD US 50 inspected?
OLD US 50'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 3,550 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. OLD US 50 is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for OLD US 50?
OLD US 50 has an NBI inventory load rating of 34.3 metric tons.
Who is responsible for maintaining OLD US 50?
OLD US 50 is owned and maintained by State Highway Agency.
How old is OLD US 50 and does age affect safety?
OLD US 50 was built in 1999, making it 27 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.
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.