CH-20 over Davidson Creek
GoodMarion County, Illinois · W Edge Tonti · Structure no. 061324800000000
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected February 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 41 ft
- 1 main span
- Daily traffic
- 425
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
CH-20 over Davidson Creek is a prestressed concrete box beam or girders - multiple carrying CH-20 over Davidson Creek in Marion County, Illinois. It was built in 1989, so it is 36 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 425 vehicles a day, roughly 14% of them trucks, projected to reach 429 by 2046. The structure is 41 ft (12.6 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
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 CH-20 over Davidson Creek built?
It was built in 1989, making it 36 years old in 2025.
What condition is CH-20 over Davidson Creek 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 2024.
How much traffic does CH-20 over Davidson Creek carry?
About 425 vehicles per day (2022 count), of which roughly 14% are trucks.
How long is CH-20 over Davidson Creek?
The structure is 41 ft (12.6 m) long with a longest span of 38 ft (11.6 m) and a deck 28 ft wide.
Who owns CH-20 over Davidson Creek?
It is owned by the County Highway Agency.