TR 228 Blackjack R over Mill Creek
FairMadison County, Illinois · 4.0 MI SE Troy · Structure no. 060321700000000
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 111 ft
- 3 main spans
- Daily traffic
- 275
- 2021 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 228 Blackjack R over Mill Creek is a prestressed concrete box beam or girders - multiple carrying TR 228 Blackjack R over Mill Creek in Madison County, Illinois. It was built in 1976, so it is 49 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 275 vehicles a day, roughly 8% of them trucks, projected to reach 294 by 2046. The structure is 111 ft (33.8 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 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 TR 228 Blackjack R over Mill Creek built?
It was built in 1976, making it 49 years old in 2025.
What condition is TR 228 Blackjack R over Mill 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 TR 228 Blackjack R over Mill Creek carry?
About 275 vehicles per day (2021 count), of which roughly 8% are trucks.
How long is TR 228 Blackjack R over Mill Creek?
The structure is 111 ft (33.8 m) long with a longest span of 35 ft (10.6 m) and a deck 30 ft wide.
Who owns TR 228 Blackjack R over Mill Creek?
It is owned by the Town or Township Highway Agency.