167th(170th)ST over Thorn Creek
PoorCook County, Illinois · 0.4 M E I94 P24 · Structure no. 016309500000000
- Built
- 1935
- 90 years old, rebuilt 1985
- Condition
- Poor
- inspected December 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 102 ft
- 2 main spans
- Daily traffic
- 10,200
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
167th(170th)ST over Thorn Creek is a prestressed concrete box beam or girders - multiple carrying 167th(170th)ST over Thorn Creek in Cook County, Illinois. It was built in 1935 and reconstructed in 1985, so it is 90 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.
It carries about 10,200 vehicles a day, roughly 4% of them trucks, projected to reach 9,999 by 2046. The structure is 102 ft (31.2 m) long and 68 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 167th(170th)ST over Thorn Creek built?
It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1985.
What condition is 167th(170th)ST over Thorn Creek 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 December 2023.
How much traffic does 167th(170th)ST over Thorn Creek carry?
About 10,200 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is 167th(170th)ST over Thorn Creek?
The structure is 102 ft (31.2 m) long with a longest span of 48 ft (14.7 m) and a deck 68 ft wide.
Who owns 167th(170th)ST over Thorn Creek?
It is owned by the County Highway Agency.