TR 523A over Otter Creek
GoodLaSalle County, Illinois · N 15th RD E 2370 · Structure no. 050350100000000
- Built
- 1985
- 40 years old
- Condition
- Good
- inspected June 2022
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 62 ft
- 2 main spans
- Daily traffic
- 200
- 2020 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 523A over Otter Creek is a prestressed concrete box beam or girders - multiple carrying TR 523A over Otter Creek in LaSalle County, Illinois. It was built in 1985, so it is 40 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 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 200 vehicles a day, roughly 2% of them trucks, projected to reach 202 by 2046. The structure is 62 ft (18.9 m) long and 24 ft wide.
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 | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 523A over Otter Creek built?
It was built in 1985, making it 40 years old in 2025.
What condition is TR 523A over Otter 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 June 2022.
How much traffic does TR 523A over Otter Creek carry?
About 200 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is TR 523A over Otter Creek?
The structure is 62 ft (18.9 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.
Who owns TR 523A over Otter Creek?
It is owned by the Town or Township Highway Agency.