TR 155A over Mission Creek
FairLaSalle County, Illinois · N 39th E 2860 · Structure no. 050344500000000
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 28 ft
- 1 main span
- Daily traffic
- 75
- 2016 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 155A over Mission Creek is a prestressed concrete box beam or girders - multiple carrying TR 155A over Mission Creek in LaSalle County, Illinois. It was built in 1976, so it is 49 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 75 vehicles a day, roughly 27% of them trucks, projected to reach 76 by 2046. The structure is 28 ft (8.5 m) long and 26 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 | 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 | 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 155A over Mission Creek built?
It was built in 1976, making it 49 years old in 2025.
What condition is TR 155A over Mission 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 155A over Mission Creek carry?
About 75 vehicles per day (2016 count), of which roughly 27% are trucks.
How long is TR 155A over Mission Creek?
The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.6 m) and a deck 26 ft wide.
Who owns TR 155A over Mission Creek?
It is owned by the Town or Township Highway Agency.