Ill 73 over Indian Creek
FairStephenson County, Illinois · In Winslow · Structure no. 089003000000000
- Built
- 1931
- 94 years old, rebuilt 1982
- Condition
- Fair
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 57 ft
- 1 main span
- Daily traffic
- 1,700
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 73 over Indian Creek is a prestressed concrete box beam or girders - multiple carrying Ill 73 over Indian Creek in Stephenson County, Illinois. It was built in 1931 and reconstructed in 1982, so it is 94 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 1,700 vehicles a day, roughly 8% of them trucks, projected to reach 1,667 by 2046. The structure is 57 ft (17.5 m) long and 43 ft wide. If it were closed, the detour would be 39.8 mi (64 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 73 over Indian Creek built?
It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1982.
What condition is Ill 73 over Indian Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.
How much traffic does Ill 73 over Indian Creek carry?
About 1,700 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is Ill 73 over Indian Creek?
The structure is 57 ft (17.5 m) long with a longest span of 53 ft (16.2 m) and a deck 43 ft wide.
Who owns Ill 73 over Indian Creek?
It is owned by the State Highway Agency.