TR-7 (airport Road over East Fork Nettle CR
PoorGrundy County, Illinois · 0.65 MI W of TR 86 · Structure no. 032305500000000
- Built
- 1980
- 45 years old
- Condition
- Poor
- inspected October 2024
- Type
- Channel Beam
- Concrete
- Length
- 58 ft
- 2 main spans
- Daily traffic
- 250
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR-7 (airport Road over East Fork Nettle CR is a concrete channel beam carrying TR-7 (airport Road over East Fork Nettle CR in Grundy County, Illinois. It was built in 1980, so it is 45 years old, younger 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 250 vehicles a day, roughly 23% of them trucks, projected to reach 270 by 2046. The structure is 58 ft (17.6 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 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 | 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 TR-7 (airport Road over East Fork Nettle CR built?
It was built in 1980, making it 45 years old in 2025.
What condition is TR-7 (airport Road over East Fork 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 October 2024.
How much traffic does TR-7 (airport Road over East Fork Nettle CR carry?
About 250 vehicles per day (2024 count), of which roughly 23% are trucks.
How long is TR-7 (airport Road over East Fork Nettle CR?
The structure is 58 ft (17.6 m) long with a longest span of 27 ft (8.3 m) and a deck 26 ft wide.
Who owns TR-7 (airport Road over East Fork Nettle CR?
It is owned by the Town or Township Highway Agency.