TR 21 over Trib. to Plum Crk
GoodRandolph County, Illinois · North of Sparta · Structure no. 079414800000000
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected February 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 40 ft
- 1 main span
- Daily traffic
- 25
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 21 over Trib. to Plum Crk is a prestressed concrete box beam or girders - multiple carrying TR 21 over Trib. to Plum Crk in Randolph County, Illinois. It was built in 1997, so it is 28 years old, younger than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 25 vehicles a day, roughly 20% of them trucks, projected to reach 25 by 2046. The structure is 40 ft (12.2 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
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 21 over Trib. to Plum Crk built?
It was built in 1997, making it 28 years old in 2025.
What condition is TR 21 over Trib. to Plum Crk in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.
How much traffic does TR 21 over Trib. to Plum Crk carry?
About 25 vehicles per day (2024 count), of which roughly 20% are trucks.
How long is TR 21 over Trib. to Plum Crk?
The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 24 ft wide.
Who owns TR 21 over Trib. to Plum Crk?
It is owned by the Town or Township Highway Agency.