US 51 (fap 322) over Louse Run Tributary
FairPosted for loadMarion County, Illinois · 7.5 MI S Fayette C L · Structure no. 061000300000000
- Built
- 1920
- 105 years old, rebuilt 1958
- Condition
- Fair
- inspected January 2025
- Type
- Slab
- Concrete
- Length
- 26 ft
- 1 main span
- Daily traffic
- 2,750
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 51 (fap 322) over Louse Run Tributary is a concrete slab carrying US 51 (fap 322) over Louse Run Tributary in Marion County, Illinois. It was built in 1920 and reconstructed in 1958, so it is 105 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 2,750 vehicles a day, roughly 18% of them trucks, projected to reach 2,828 by 2046. The structure is 26 ft (7.9 m) long and 46 ft wide. If it were closed, the detour would be 26.1 mi (42 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 US 51 (fap 322) over Louse Run Tributary built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1958.
What condition is US 51 (fap 322) over Louse Run Tributary 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 US 51 (fap 322) over Louse Run Tributary carry?
About 2,750 vehicles per day (2023 count), of which roughly 18% are trucks.
How long is US 51 (fap 322) over Louse Run Tributary?
The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 46 ft wide.
Who owns US 51 (fap 322) over Louse Run Tributary?
It is owned by the State Highway Agency.