TR 105 over Parker Run
FairMercer County, Illinois · SW-27-T15NR1W · Structure no. 066511000000000
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 50 ft
- 1 main span
- Daily traffic
- 75
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 105 over Parker Run is a steel stringer/multi-beam or girder carrying TR 105 over Parker Run in Mercer County, Illinois. It was built in 1975, so it is 50 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 6 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 50 ft (15.2 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| 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 105 over Parker Run built?
It was built in 1975, making it 50 years old in 2025.
What condition is TR 105 over Parker Run 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 December 2024.
How much traffic does TR 105 over Parker Run carry?
About 75 vehicles per day (2024 count), of which roughly 27% are trucks.
How long is TR 105 over Parker Run?
The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 20 ft wide.
Who owns TR 105 over Parker Run?
It is owned by the Town or Township Highway Agency.