US 34 over Walnut Creek
PoorKnox County, Illinois · 1 MI SW of Altona · Structure no. 048003800000000
- Built
- 1921
- 104 years old, rebuilt 1980
- Condition
- Poor
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 43 ft
- 1 main span
- Daily traffic
- 2,550
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 34 over Walnut Creek is a prestressed concrete box beam or girders - multiple carrying US 34 over Walnut Creek in Knox County, Illinois. It was built in 1921 and reconstructed in 1980, so it is 104 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 2,550 vehicles a day, roughly 13% of them trucks, projected to reach 2,222 by 2046. The structure is 43 ft (13.1 m) long and 35 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 34 over Walnut Creek built?
It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1980.
What condition is US 34 over Walnut 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 April 2024.
How much traffic does US 34 over Walnut Creek carry?
About 2,550 vehicles per day (2023 count), of which roughly 13% are trucks.
How long is US 34 over Walnut Creek?
The structure is 43 ft (13.1 m) long with a longest span of 42 ft (12.8 m) and a deck 35 ft wide.
Who owns US 34 over Walnut Creek?
It is owned by the State Highway Agency.