Ill 146 over Clear Creek
PoorUnion County, Illinois · 2 MI E. of Ill 3 · Structure no. 091006000000000
- Built
- 1976
- 49 years old
- Condition
- Poor
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 380 ft
- 4 main spans
- Daily traffic
- 4,050
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 146 over Clear Creek is a steel continuous stringer/multi-beam or girder carrying Ill 146 over Clear Creek in Union County, Illinois. It was built in 1976, so it is 49 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 4,050 vehicles a day, roughly 13% of them trucks, projected to reach 4,747 by 2046. The structure is 380 ft (115.8 m) long and 46 ft wide. If it were closed, the detour would be 9.9 mi (16 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 146 over Clear Creek built?
It was built in 1976, making it 49 years old in 2025.
What condition is Ill 146 over Clear Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.
How much traffic does Ill 146 over Clear Creek carry?
About 4,050 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is Ill 146 over Clear Creek?
The structure is 380 ft (115.8 m) long with a longest span of 106 ft (32.3 m) and a deck 46 ft wide.
Who owns Ill 146 over Clear Creek?
It is owned by the State Highway Agency.