FAP 821 - Il 15 over Big Muddy River
GoodJefferson County, Illinois · 8.6 MI E Wash CO LN · Structure no. 041010600000000
- Built
- 2007
- 18 years old
- Condition
- Good
- inspected July 2021
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 137 ft
- 2 main spans
- Daily traffic
- 5,350
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
FAP 821 - Il 15 over Big Muddy River is a steel continuous stringer/multi-beam or girder carrying FAP 821 - Il 15 over Big Muddy River in Jefferson County, Illinois. It was built in 2007, so it is 18 years old, younger 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 5,350 vehicles a day, roughly 7% of them trucks, projected to reach 5,555 by 2046. The structure is 137 ft (41.8 m) long and 42 ft wide. If it were closed, the detour would be 39.8 mi (64 km).
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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FAP 821 - Il 15 over Big Muddy River built?
It was built in 2007, making it 18 years old in 2025.
What condition is FAP 821 - Il 15 over Big Muddy River 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 July 2021.
How much traffic does FAP 821 - Il 15 over Big Muddy River carry?
About 5,350 vehicles per day (2023 count), of which roughly 7% are trucks.
How long is FAP 821 - Il 15 over Big Muddy River?
The structure is 137 ft (41.8 m) long with a longest span of 72 ft (21.9 m) and a deck 42 ft wide.
Who owns FAP 821 - Il 15 over Big Muddy River?
It is owned by the State Highway Agency.