31st ST over Salt Creek
FairCook County, Illinois · 0.5 M W US 45 · Structure no. 016086800000000
- Built
- 1927
- 98 years old, rebuilt 1984
- Condition
- Fair
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 141 ft
- 3 main spans
- Daily traffic
- 18,200
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
31st ST over Salt Creek is a steel continuous stringer/multi-beam or girder carrying 31st ST over Salt Creek in Cook County, Illinois. It was built in 1927 and reconstructed in 1984, so it is 98 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 18,200 vehicles a day, roughly 2% of them trucks, projected to reach 16,059 by 2046. The structure is 141 ft (43 m) long and 64 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 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 | 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 31st ST over Salt Creek built?
It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1984.
What condition is 31st ST over Salt 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 January 2024.
How much traffic does 31st ST over Salt Creek carry?
About 18,200 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is 31st ST over Salt Creek?
The structure is 141 ft (43 m) long with a longest span of 46 ft (14 m) and a deck 64 ft wide.
Who owns 31st ST over Salt Creek?
It is owned by the State Highway Agency.