Jefferson ST over Rock Riv& Madison ST
FairPosted for loadWinnebago County, Illinois · 0.1 MI E of N Main · Structure no. 101613500000000
- Built
- 1925
- 100 years old, rebuilt 1994
- Condition
- Fair
- inspected October 2023
- Type
- Other
- Concrete
- Length
- 1,285 ft
- 5 main spans
- Daily traffic
- 8,500
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Jefferson ST over Rock Riv& Madison ST is a concrete other carrying Jefferson ST over Rock Riv& Madison ST in Winnebago County, Illinois. It was built in 1925 and reconstructed in 1994, so it is 100 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. Its operating status is: posted for load restriction.
It carries about 8,500 vehicles a day, roughly 3% of them trucks, projected to reach 8,585 by 2046. The structure is 1,285 ft (391.7 m) long and 64 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Jefferson ST over Rock Riv& Madison ST built?
It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1994.
What condition is Jefferson ST over Rock Riv& Madison ST 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 October 2023.
How much traffic does Jefferson ST over Rock Riv& Madison ST carry?
About 8,500 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Jefferson ST over Rock Riv& Madison ST?
The structure is 1,285 ft (391.7 m) long with a longest span of 106 ft (32.3 m) and a deck 64 ft wide.
Who owns Jefferson ST over Rock Riv& Madison ST?
It is owned by the City or Municipal Highway Agency.