Twp RD TR 70 over FAI 80
PoorPosted for loadGrundy County, Illinois · 5.20 MI W Ill 47 · Structure no. 032005400000000
- Built
- 1958
- 67 years old
- Condition
- Poor
- inspected November 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 190 ft
- 4 main spans
- Daily traffic
- 150
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Twp RD TR 70 over FAI 80 is a concrete continuous tee beam carrying Twp RD TR 70 over FAI 80 in Grundy County, Illinois. It was built in 1958, so it is 67 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 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. Its operating status is: posted for load restriction.
It carries about 150 vehicles a day, roughly 14% of them trucks, projected to reach 210 by 2046. The structure is 190 ft (57.9 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Twp RD TR 70 over FAI 80 built?
It was built in 1958, making it 67 years old in 2025.
What condition is Twp RD TR 70 over FAI 80 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 November 2024.
How much traffic does Twp RD TR 70 over FAI 80 carry?
About 150 vehicles per day (2024 count), of which roughly 14% are trucks.
How long is Twp RD TR 70 over FAI 80?
The structure is 190 ft (57.9 m) long with a longest span of 56 ft (17 m) and a deck 30 ft wide.
Who owns Twp RD TR 70 over FAI 80?
It is owned by the State Highway Agency.