FAS Rt 831 over Little Muddy River
GoodWashington County, Illinois · 0.20 MI West Radom · Structure no. 095313100000000
- Built
- 1982
- 43 years old
- Condition
- Good
- inspected March 2021
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 106 ft
- 3 main spans
- Daily traffic
- 600
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
FAS Rt 831 over Little Muddy River is a prestressed concrete box beam or girders - multiple carrying FAS Rt 831 over Little Muddy River in Washington County, Illinois. It was built in 1982, so it is 43 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 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 600 vehicles a day, roughly 12% of them trucks, projected to reach 756 by 2046. The structure is 106 ft (32.3 m) long and 30 ft wide. If it were closed, the detour would be 14.9 mi (24 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| 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 FAS Rt 831 over Little Muddy River built?
It was built in 1982, making it 43 years old in 2025.
What condition is FAS Rt 831 over Little 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 March 2021.
How much traffic does FAS Rt 831 over Little Muddy River carry?
About 600 vehicles per day (2024 count), of which roughly 12% are trucks.
How long is FAS Rt 831 over Little Muddy River?
The structure is 106 ft (32.3 m) long with a longest span of 42 ft (12.8 m) and a deck 30 ft wide.
Who owns FAS Rt 831 over Little Muddy River?
It is owned by the County Highway Agency.