TR 187 N 37th over Spring Creek
FairLaSalle County, Illinois · N 37th E 125 · Structure no. 050346000000000
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 41 ft
- 1 main span
- Daily traffic
- 200
- 2023 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 187 N 37th over Spring Creek is a prestressed concrete box beam or girders - multiple carrying TR 187 N 37th over Spring Creek in LaSalle County, Illinois. It was built in 1979, so it is 46 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. Its operating status is: open, would be posted or closed except for temporary shoring.
It carries about 200 vehicles a day, roughly 4% of them trucks, projected to reach 152 by 2046. The structure is 41 ft (12.5 m) long and 24 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 |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 187 N 37th over Spring Creek built?
It was built in 1979, making it 46 years old in 2025.
What condition is TR 187 N 37th over Spring 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 187 N 37th over Spring Creek carry?
About 200 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is TR 187 N 37th over Spring Creek?
The structure is 41 ft (12.5 m) long with a longest span of 39 ft (11.9 m) and a deck 24 ft wide.
Who owns TR 187 N 37th over Spring Creek?
It is owned by the Town or Township Highway Agency.