South Blackjack Ro over Smallpox Creek
FairJo Daviess County, Illinois · 3 Miles South Galena · Structure no. 043300700000000
- Built
- 1959
- 66 years old
- Condition
- Fair
- inspected September 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 131 ft
- 3 main spans
- Daily traffic
- 475
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
South Blackjack Ro over Smallpox Creek is a concrete continuous tee beam carrying South Blackjack Ro over Smallpox Creek in Jo Daviess County, Illinois. It was built in 1959, so it is 66 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.
It carries about 475 vehicles a day, roughly 5% of them trucks, projected to reach 480 by 2046. The structure is 131 ft (39.9 m) long and 28 ft wide. If it were closed, the detour would be 24.9 mi (40 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 South Blackjack Ro over Smallpox Creek built?
It was built in 1959, making it 66 years old in 2025.
What condition is South Blackjack Ro over Smallpox 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 September 2024.
How much traffic does South Blackjack Ro over Smallpox Creek carry?
About 475 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is South Blackjack Ro over Smallpox Creek?
The structure is 131 ft (39.9 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.
Who owns South Blackjack Ro over Smallpox Creek?
It is owned by the County Highway Agency.