Black Lane over Harding Ditch
GoodSt. Clair County, Illinois · 1.25 Mi. N of Bunkum · Structure no. 082310900000000
- Built
- 2013
- 12 years old
- Condition
- Good
- inspected February 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 82 ft
- 1 main span
- Daily traffic
- 2,500
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Black Lane over Harding Ditch is a prestressed concrete box beam or girders - multiple carrying Black Lane over Harding Ditch in St. Clair County, Illinois. It was built in 2013, so it is 12 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 2,500 vehicles a day, roughly 6% of them trucks, projected to reach 2,323 by 2046. The structure is 82 ft (25 m) long and 40 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Black Lane over Harding Ditch built?
It was built in 2013, making it 12 years old in 2025.
What condition is Black Lane over Harding Ditch 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 Black Lane over Harding Ditch carry?
About 2,500 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is Black Lane over Harding Ditch?
The structure is 82 ft (25 m) long and a deck 40 ft wide.
Who owns Black Lane over Harding Ditch?
It is owned by the County Highway Agency.