Perrin RD/CH66 over Trib of Silver Creek
GoodSt. Clair County, Illinois · 1 MI E Il 4 · Structure no. 082309900000000
- Built
- 2004
- 21 years old
- Condition
- Good
- inspected April 2021
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 52 ft
- 1 main span
- Daily traffic
- 425
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Perrin RD/CH66 over Trib of Silver Creek is a prestressed concrete box beam or girders - multiple carrying Perrin RD/CH66 over Trib of Silver Creek in St. Clair County, Illinois. It was built in 2004, so it is 21 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 425 vehicles a day, roughly 8% of them trucks, projected to reach 530 by 2046. The structure is 52 ft (15.8 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Perrin RD/CH66 over Trib of Silver Creek built?
It was built in 2004, making it 21 years old in 2025.
What condition is Perrin RD/CH66 over Trib of Silver 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 April 2021.
How much traffic does Perrin RD/CH66 over Trib of Silver Creek carry?
About 425 vehicles per day (2023 count), of which roughly 8% are trucks.
How long is Perrin RD/CH66 over Trib of Silver Creek?
The structure is 52 ft (15.8 m) long with a longest span of 49 ft (14.9 m) and a deck 28 ft wide.
Who owns Perrin RD/CH66 over Trib of Silver Creek?
It is owned by the County Highway Agency.