TR 523 over Otter Creek
FairLaSalle County, Illinois · N 15th E 2090 · Structure no. 050501300000000
- Built
- 1952
- 73 years old
- Condition
- Fair
- inspected June 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 39 ft
- 3 main spans
- Daily traffic
- 400
- 2020 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 523 over Otter Creek is a concrete continuous culvert carrying TR 523 over Otter Creek in LaSalle County, Illinois. It was built in 1952, so it is 73 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 400 vehicles a day, roughly 3% of them trucks, projected to reach 404 by 2046. The structure is 39 ft (11.9 m) long and 30 ft wide.
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 |
|---|---|---|
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Culvert | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 523 over Otter Creek built?
It was built in 1952, making it 73 years old in 2025.
What condition is TR 523 over Otter 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 June 2024.
How much traffic does TR 523 over Otter Creek carry?
About 400 vehicles per day (2020 count), of which roughly 3% are trucks.
How long is TR 523 over Otter Creek?
The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.7 m) and a deck 30 ft wide.
Who owns TR 523 over Otter Creek?
It is owned by the Town or Township Highway Agency.