Ill 70 over Drainage Ditch
FairWinnebago County, Illinois · .2 MI E of Leech RD · Structure no. 101008700000000
- Built
- 1932
- 93 years old, rebuilt 1982
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 64 ft
- 1 main span
- Daily traffic
- 3,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Ill 70 over Drainage Ditch is a prestressed concrete stringer/multi-beam or girder carrying Ill 70 over Drainage Ditch in Winnebago County, Illinois. It was built in 1932 and reconstructed in 1982, so it is 93 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 3,000 vehicles a day, roughly 5% of them trucks, projected to reach 2,677 by 2046. The structure is 64 ft (19.4 m) long and 35 ft wide. If it were closed, the detour would be 14.3 mi (23 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ill 70 over Drainage Ditch built?
It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1982.
What condition is Ill 70 over Drainage Ditch in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.
How much traffic does Ill 70 over Drainage Ditch carry?
About 3,000 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is Ill 70 over Drainage Ditch?
The structure is 64 ft (19.4 m) long with a longest span of 58 ft (17.7 m) and a deck 35 ft wide.
Who owns Ill 70 over Drainage Ditch?
It is owned by the State Highway Agency.