Ill 147 over Cedar Creek
GoodJohnson County, Illinois · In Simpson · Structure no. 044002500000000
- Built
- 1937
- 88 years old, rebuilt 1988
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 124 ft
- 3 main spans
- Daily traffic
- 550
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 147 over Cedar Creek is a steel continuous stringer/multi-beam or girder carrying Ill 147 over Cedar Creek in Johnson County, Illinois. It was built in 1937 and reconstructed in 1988, so it is 88 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 550 vehicles a day, roughly 8% of them trucks, projected to reach 656 by 2046. The structure is 124 ft (37.9 m) long and 32 ft wide. If it were closed, the detour would be 16.2 mi (26 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 147 over Cedar Creek built?
It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1988.
What condition is Ill 147 over Cedar Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.
How much traffic does Ill 147 over Cedar Creek carry?
About 550 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is Ill 147 over Cedar Creek?
The structure is 124 ft (37.9 m) long with a longest span of 47 ft (14.3 m) and a deck 32 ft wide.
Who owns Ill 147 over Cedar Creek?
It is owned by the State Highway Agency.