TR 525 over I-39/US 51
GoodLaSalle County, Illinois · 1.0 MI N of Il 18 · Structure no. 050021400000000
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 228 ft
- 3 main spans
- Daily traffic
- 50
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
TR 525 over I-39/US 51 is a steel continuous stringer/multi-beam or girder carrying TR 525 over I-39/US 51 in LaSalle County, Illinois. It was built in 1988, so it is 37 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 50 vehicles a day, projected to reach 51 by 2046. The structure is 228 ft (69.6 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 525 over I-39/US 51 built?
It was built in 1988, making it 37 years old in 2025.
What condition is TR 525 over I-39/US 51 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 February 2023.
How much traffic does TR 525 over I-39/US 51 carry?
About 50 vehicles per day (2020 count).
How long is TR 525 over I-39/US 51?
The structure is 228 ft (69.6 m) long with a longest span of 165 ft (50.4 m) and a deck 31 ft wide.
Who owns TR 525 over I-39/US 51?
It is owned by the State Highway Agency.