TR 122 over Prairie CR
PoorPosted for loadLaSalle County, Illinois · E 7th N 580 · Structure no. 050340700000000
- Built
- 1969
- 56 years old
- Condition
- Poor
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 43 ft
- 1 main span
- Daily traffic
- 25
- 2016 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 122 over Prairie CR is a prestressed concrete box beam or girders - multiple carrying TR 122 over Prairie CR in LaSalle County, Illinois. It was built in 1969, so it is 56 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 25 vehicles a day, roughly 40% of them trucks, projected to reach 25 by 2046. The structure is 43 ft (13.1 m) long and 26 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 122 over Prairie CR built?
It was built in 1969, making it 56 years old in 2025.
What condition is TR 122 over Prairie CR in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.
How much traffic does TR 122 over Prairie CR carry?
About 25 vehicles per day (2016 count), of which roughly 40% are trucks.
How long is TR 122 over Prairie CR?
The structure is 43 ft (13.1 m) long with a longest span of 42 ft (12.8 m) and a deck 26 ft wide.
Who owns TR 122 over Prairie CR?
It is owned by the Town or Township Highway Agency.