TR 21 over Trib W Frk W R Crk
FairMadison County, Illinois · 4.5 MI N of Alton · Structure no. 060327900000000
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected February 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 82 ft
- 3 main spans
- Daily traffic
- 150
- 2021 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 21 over Trib W Frk W R Crk is a prestressed concrete box beam or girders - multiple carrying TR 21 over Trib W Frk W R Crk in Madison County, Illinois. It was built in 1988, so it is 37 years old, younger 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 150 vehicles a day, roughly 9% of them trucks, projected to reach 161 by 2046. The structure is 82 ft (25 m) long and 28 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 | 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 21 over Trib W Frk W R Crk built?
It was built in 1988, making it 37 years old in 2025.
What condition is TR 21 over Trib W Frk W R Crk 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 February 2023.
How much traffic does TR 21 over Trib W Frk W R Crk carry?
About 150 vehicles per day (2021 count), of which roughly 9% are trucks.
How long is TR 21 over Trib W Frk W R Crk?
The structure is 82 ft (25 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.
Who owns TR 21 over Trib W Frk W R Crk?
It is owned by the Town or Township Highway Agency.