FAS 907 (ch 9)(UNM over Big Muddy River
FairWilliamson County, Illinois · 1 MI S of Hurst · Structure no. 100006200000000
- Built
- 1937
- 88 years old, rebuilt 1984
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 474 ft
- 4 main spans
- Daily traffic
- 5,550
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
FAS 907 (ch 9)(UNM over Big Muddy River is a steel continuous stringer/multi-beam or girder carrying FAS 907 (ch 9)(UNM over Big Muddy River in Williamson County, Illinois. It was built in 1937 and reconstructed in 1984, so it is 88 years old, older 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 5 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 5,550 vehicles a day, roughly 3% of them trucks, projected to reach 5,606 by 2046. The structure is 474 ft (144.5 m) long and 35 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FAS 907 (ch 9)(UNM over Big Muddy River built?
It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1984.
What condition is FAS 907 (ch 9)(UNM 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 March 2024.
How much traffic does FAS 907 (ch 9)(UNM over Big Muddy River carry?
About 5,550 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is FAS 907 (ch 9)(UNM over Big Muddy River?
The structure is 474 ft (144.5 m) long with a longest span of 131 ft (39.9 m) and a deck 35 ft wide.
Who owns FAS 907 (ch 9)(UNM over Big Muddy River?
It is owned by the State Highway Agency.