Joliet RD over Flag Creek
GoodCook County, Illinois · 0.8 M NE Dupage CO · Structure no. 016039300000000
- Built
- 1959
- 66 years old, rebuilt 2020
- Condition
- Good
- inspected February 2022
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 95 ft
- 2 main spans
- Daily traffic
- 12,500
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
Joliet RD over Flag Creek is a steel continuous stringer/multi-beam or girder carrying Joliet RD over Flag Creek in Cook County, Illinois. It was built in 1959 and reconstructed in 2020, so it is 66 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 12,500 vehicles a day, roughly 9% of them trucks, projected to reach 12,625 by 2046. The structure is 95 ft (28.9 m) long and 73 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 | 9 Excellent | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Joliet RD over Flag Creek built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2020.
What condition is Joliet RD 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 February 2022.
How much traffic does Joliet RD over Flag Creek carry?
About 12,500 vehicles per day (2018 count), of which roughly 9% are trucks.
How long is Joliet RD over Flag Creek?
The structure is 95 ft (28.9 m) long with a longest span of 45 ft (13.7 m) and a deck 73 ft wide.
Who owns Joliet RD over Flag Creek?
It is owned by the State Highway Agency.