70th Place over Flag Creek
GoodCook County, Illinois · 1.5 M W US 45 · Structure no. 016106300000000
- Built
- 1963
- 62 years old
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 88 ft
- 1 main span
- Daily traffic
- 150
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
70th Place over Flag Creek is a prestressed concrete stringer/multi-beam or girder carrying 70th Place over Flag Creek in Cook County, Illinois. It was built in 1963, so it is 62 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 150 vehicles a day, roughly 35% of them trucks, projected to reach 379 by 2046. The structure is 88 ft (26.9 m) long and 32 ft wide.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 70th Place over Flag Creek built?
It was built in 1963, making it 62 years old in 2025.
What condition is 70th Place over Flag Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.
How much traffic does 70th Place over Flag Creek carry?
About 150 vehicles per day (2022 count), of which roughly 35% are trucks.
How long is 70th Place over Flag Creek?
The structure is 88 ft (26.9 m) long with a longest span of 83 ft (25.3 m) and a deck 32 ft wide.
Who owns 70th Place over Flag Creek?
It is owned by the State Highway Agency.