Risdon School TR 1 over Branch Doza Creek
GoodSt. Clair County, Illinois · 6 MI West of Marissa · Structure no. 082412300000000
- Built
- 1967
- 58 years old
- Condition
- Good
- inspected March 2023
- Type
- Culvert
- Concrete
- Length
- 36 ft
- 2 main spans
- Daily traffic
- 225
- 2023 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Risdon School TR 1 over Branch Doza Creek is a concrete culvert carrying Risdon School TR 1 over Branch Doza Creek in St. Clair County, Illinois. It was built in 1967, so it is 58 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 225 vehicles a day, roughly 18% of them trucks, projected to reach 152 by 2046. The structure is 36 ft (11 m) long and 38 ft wide. If it were closed, the detour would be 8.7 mi (14 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Risdon School TR 1 over Branch Doza Creek built?
It was built in 1967, making it 58 years old in 2025.
What condition is Risdon School TR 1 over Branch Doza 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 March 2023.
How much traffic does Risdon School TR 1 over Branch Doza Creek carry?
About 225 vehicles per day (2023 count), of which roughly 18% are trucks.
How long is Risdon School TR 1 over Branch Doza Creek?
The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 38 ft wide.
Who owns Risdon School TR 1 over Branch Doza Creek?
It is owned by the Town or Township Highway Agency.