Ill 34 over Blackman Creek
FairSaline County, Illinois · 1 MI SE JCT 34 & 145 · Structure no. 083002100000000
- Built
- 1924
- 101 years old, rebuilt 1981
- Condition
- Fair
- inspected June 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 42 ft
- 1 main span
- Daily traffic
- 2,050
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 34 over Blackman Creek is a prestressed concrete box beam or girders - multiple carrying Ill 34 over Blackman Creek in Saline County, Illinois. It was built in 1924 and reconstructed in 1981, so it is 101 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 2,050 vehicles a day, roughly 9% of them trucks, projected to reach 2,323 by 2046. The structure is 42 ft (12.9 m) long and 33 ft wide. If it were closed, the detour would be 42.3 mi (68 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Ill 34 over Blackman Creek built?
It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1981.
What condition is Ill 34 over Blackman 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 Ill 34 over Blackman Creek carry?
About 2,050 vehicles per day (2023 count), of which roughly 9% are trucks.
How long is Ill 34 over Blackman Creek?
The structure is 42 ft (12.9 m) long with a longest span of 38 ft (11.5 m) and a deck 33 ft wide.
Who owns Ill 34 over Blackman Creek?
It is owned by the State Highway Agency.