8th Av over Keith Creek
PoorPosted for loadWinnebago County, Illinois · 0.05 MI E Kishwaukee · Structure no. 101604300000000
- Built
- 1919
- 106 years old
- Condition
- Poor
- inspected July 2023
- Type
- Slab
- Concrete
- Length
- 33 ft
- 2 main spans
- Daily traffic
- 375
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
8th Av over Keith Creek is a concrete slab carrying 8th Av over Keith Creek in Winnebago County, Illinois. It was built in 1919, so it is 106 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 375 vehicles a day, roughly 5% of them trucks, projected to reach 657 by 2046. The structure is 33 ft (10.1 m) long and 66 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 8th Av over Keith Creek built?
It was built in 1919, making it 106 years old in 2025.
What condition is 8th Av over Keith Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.
How much traffic does 8th Av over Keith Creek carry?
About 375 vehicles per day (2022 count), of which roughly 5% are trucks.
How long is 8th Av over Keith Creek?
The structure is 33 ft (10.1 m) long with a longest span of 16 ft (4.9 m) and a deck 66 ft wide.
Who owns 8th Av over Keith Creek?
It is owned by the City or Municipal Highway Agency.