Johnson ST over Nettle CR
PoorGrundy County, Illinois · Johnson ST Ov Net CR · Structure no. 032700800000000
- Built
- 1971
- 54 years old
- Condition
- Poor
- inspected June 2023
- Type
- Channel Beam
- Concrete
- Length
- 65 ft
- 2 main spans
- Daily traffic
- 600
- 2024 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Johnson ST over Nettle CR is a concrete channel beam carrying Johnson ST over Nettle CR in Grundy County, Illinois. It was built in 1971, so it is 54 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.
It carries about 600 vehicles a day, roughly 10% of them trucks, projected to reach 960 by 2046. The structure is 65 ft (19.8 m) long and 46 ft wide.
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Johnson ST over Nettle CR built?
It was built in 1971, making it 54 years old in 2025.
What condition is Johnson ST over Nettle CR 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 June 2023.
How much traffic does Johnson ST over Nettle CR carry?
About 600 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is Johnson ST over Nettle CR?
The structure is 65 ft (19.8 m) long with a longest span of 33 ft (10.1 m) and a deck 46 ft wide.
Who owns Johnson ST over Nettle CR?
It is owned by the City or Municipal Highway Agency.