Ill 108 over Bear Creek
FairMacoupin County, Illinois · 2.2MI E JCT Il 111 · Structure no. 059002100000000
- Built
- 1929
- 96 years old, rebuilt 1985
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 103 ft
- 1 main span
- Daily traffic
- 1,350
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 108 over Bear Creek is a prestressed concrete stringer/multi-beam or girder carrying Ill 108 over Bear Creek in Macoupin County, Illinois. It was built in 1929 and reconstructed in 1985, so it is 96 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 1,350 vehicles a day, roughly 11% of them trucks, projected to reach 1,465 by 2046. The structure is 103 ft (31.5 m) long and 35 ft wide. If it were closed, the detour would be 24.9 mi (40 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 108 over Bear Creek built?
It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1985.
What condition is Ill 108 over Bear 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 September 2024.
How much traffic does Ill 108 over Bear Creek carry?
About 1,350 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is Ill 108 over Bear Creek?
The structure is 103 ft (31.5 m) long with a longest span of 101 ft (30.8 m) and a deck 35 ft wide.
Who owns Ill 108 over Bear Creek?
It is owned by the State Highway Agency.