TR 420-B over Mud Creek
FairHenry County, Illinois · 1.0 MI W Annawan · Structure no. 037323600000000
- Built
- 1978
- 47 years old
- Condition
- Fair
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 104 ft
- 3 main spans
- Daily traffic
- 75
- 2020 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 420-B over Mud Creek is a prestressed concrete box beam or girders - multiple carrying TR 420-B over Mud Creek in Henry County, Illinois. It was built in 1978, so it is 47 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 75 vehicles a day, roughly 23% of them trucks, projected to reach 81 by 2046. The structure is 104 ft (31.7 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 420-B over Mud Creek built?
It was built in 1978, making it 47 years old in 2025.
What condition is TR 420-B over Mud 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 420-B over Mud Creek carry?
About 75 vehicles per day (2020 count), of which roughly 23% are trucks.
How long is TR 420-B over Mud Creek?
The structure is 104 ft (31.7 m) long with a longest span of 52 ft (15.8 m) and a deck 24 ft wide.
Who owns TR 420-B over Mud Creek?
It is owned by the Town or Township Highway Agency.