Ill 13 / Il 157 over Harding Ditch
GoodSt. Clair County, Illinois · SE of JCT Il 163&157 · Structure no. 082021200000000
- Built
- 1973
- 52 years old, rebuilt 2008
- Condition
- Good
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 115 ft
- 3 main spans
- Daily traffic
- 6,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 13 / Il 157 over Harding Ditch is a prestressed concrete box beam or girders - multiple carrying Ill 13 / Il 157 over Harding Ditch in St. Clair County, Illinois. It was built in 1973 and reconstructed in 2008, so it is 52 years old, older 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 6,000 vehicles a day, roughly 6% of them trucks, projected to reach 6,464 by 2046. The structure is 115 ft (34.9 m) long and 33 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 13 / Il 157 over Harding Ditch built?
It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2008.
What condition is Ill 13 / Il 157 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 October 2024.
How much traffic does Ill 13 / Il 157 over Harding Ditch carry?
About 6,000 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is Ill 13 / Il 157 over Harding Ditch?
The structure is 115 ft (34.9 m) long with a longest span of 42 ft (12.9 m) and a deck 33 ft wide.
Who owns Ill 13 / Il 157 over Harding Ditch?
It is owned by the State Highway Agency.