FAP 322-US 51 over Big Muddy River
FairJackson County, Illinois · 1.8 MI S Desoto · Structure no. 039006500000000
- Built
- 2001
- 24 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 364 ft
- 3 main spans
- Daily traffic
- 6,250
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
FAP 322-US 51 over Big Muddy River is a steel continuous stringer/multi-beam or girder carrying FAP 322-US 51 over Big Muddy River in Jackson County, Illinois. It was built in 2001, so it is 24 years old, younger 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 6 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 6,250 vehicles a day, roughly 5% of them trucks, projected to reach 6,767 by 2046. The structure is 364 ft (111 m) long and 43 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 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 322-US 51 over Big Muddy River built?
It was built in 2001, making it 24 years old in 2025.
What condition is FAP 322-US 51 over Big Muddy River 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 2025.
How much traffic does FAP 322-US 51 over Big Muddy River carry?
About 6,250 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is FAP 322-US 51 over Big Muddy River?
The structure is 364 ft (111 m) long with a longest span of 148 ft (45 m) and a deck 43 ft wide.
Who owns FAP 322-US 51 over Big Muddy River?
It is owned by the State Highway Agency.