TR 78 over W Fork of Nettle Crk
PoorGrundy County, Illinois · .8 MI S of Nelson RD · Structure no. 032364100000000
- Built
- 1996
- 29 years old
- Condition
- Poor
- inspected October 2024
- Type
- Channel Beam
- Concrete
- Length
- 138 ft
- 4 main spans
- Daily traffic
- 150
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 78 over W Fork of Nettle Crk is a concrete channel beam carrying TR 78 over W Fork of Nettle Crk in Grundy County, Illinois. It was built in 1996, so it is 29 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 4 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 150 vehicles a day, roughly 25% of them trucks, projected to reach 210 by 2046. The structure is 138 ft (42.2 m) long and 26 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 | 8 Very Good | No problems noted. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 78 over W Fork of Nettle Crk built?
It was built in 1996, making it 29 years old in 2025.
What condition is TR 78 over W Fork of Nettle Crk 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 78 over W Fork of Nettle Crk carry?
About 150 vehicles per day (2024 count), of which roughly 25% are trucks.
How long is TR 78 over W Fork of Nettle Crk?
The structure is 138 ft (42.2 m) long with a longest span of 34 ft (10.4 m) and a deck 26 ft wide.
Who owns TR 78 over W Fork of Nettle Crk?
It is owned by the Town or Township Highway Agency.