Ch 18 over Trib of Plum Crk
GoodRandolph County, Illinois · 4 MI N of Sparta · Structure no. 079318200000000
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Concrete
- Length
- 52 ft
- 1 main span
- Daily traffic
- 700
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Ch 18 over Trib of Plum Crk is a concrete box beam or girders - multiple carrying Ch 18 over Trib of Plum Crk in Randolph 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 700 vehicles a day, roughly 31% of them trucks, projected to reach 581 by 2046. The structure is 52 ft (15.7 m) long and 28 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ch 18 over Trib of Plum Crk built?
It was built in 1988, making it 37 years old in 2025.
What condition is Ch 18 over Trib of 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 January 2025.
How much traffic does Ch 18 over Trib of Plum Crk carry?
About 700 vehicles per day (2024 count), of which roughly 31% are trucks.
How long is Ch 18 over Trib of Plum Crk?
The structure is 52 ft (15.7 m) long with a longest span of 49 ft (14.8 m) and a deck 28 ft wide.
Who owns Ch 18 over Trib of Plum Crk?
It is owned by the County Highway Agency.