US 51 over Half-Mile Creek
FairPosted for loadPerry County, Illinois · S of Ill 14 · Structure no. 073000300000000
- Built
- 1921
- 104 years old, rebuilt 1954
- Condition
- Fair
- inspected August 2024
- Type
- Slab
- Concrete
- Length
- 26 ft
- 1 main span
- Daily traffic
- 6,350
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 51 over Half-Mile Creek is a concrete slab carrying US 51 over Half-Mile Creek in Perry County, Illinois. It was built in 1921 and reconstructed in 1954, so it is 104 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. Its operating status is: posted for load restriction.
It carries about 6,350 vehicles a day, roughly 5% of them trucks, projected to reach 6,666 by 2046. The structure is 26 ft (7.9 m) long and 42 ft wide. If it were closed, the detour would be 23 mi (37 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 51 over Half-Mile Creek built?
It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1954.
What condition is US 51 over Half-Mile Creek 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 August 2024.
How much traffic does US 51 over Half-Mile Creek carry?
About 6,350 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is US 51 over Half-Mile Creek?
The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 42 ft wide.
Who owns US 51 over Half-Mile Creek?
It is owned by the State Highway Agency.