FAS 931 over Mill Creek
GoodJohnson County, Illinois · SW1/4 SEC16 T13S R4E · Structure no. 044308200000000
- Built
- 1983
- 42 years old
- Condition
- Good
- inspected February 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 70 ft
- 1 main span
- Daily traffic
- 325
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
FAS 931 over Mill Creek is a prestressed concrete box beam or girders - multiple carrying FAS 931 over Mill Creek in Johnson County, Illinois. It was built in 1983, so it is 42 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 325 vehicles a day, roughly 6% of them trucks, projected to reach 341 by 2046. The structure is 70 ft (21.3 m) long and 30 ft wide. If it were closed, the detour would be 14.3 mi (23 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 FAS 931 over Mill Creek built?
It was built in 1983, making it 42 years old in 2025.
What condition is FAS 931 over Mill 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 2023.
How much traffic does FAS 931 over Mill Creek carry?
About 325 vehicles per day (2021 count), of which roughly 6% are trucks.
How long is FAS 931 over Mill Creek?
The structure is 70 ft (21.3 m) long with a longest span of 68 ft (20.7 m) and a deck 30 ft wide.
Who owns FAS 931 over Mill Creek?
It is owned by the County Highway Agency.