TR-107B Reed RD over Johnny Run
PoorPosted for loadGrundy County, Illinois · .02 MI E Old Mazon R · Structure no. 032498000000000
- Built
- 1940
- 85 years old, rebuilt 1973
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 54 ft
- 2 main spans
- Daily traffic
- 225
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR-107B Reed RD over Johnny Run is a steel stringer/multi-beam or girder carrying TR-107B Reed RD over Johnny Run in Grundy County, Illinois. It was built in 1940 and reconstructed in 1973, so it is 85 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 225 vehicles a day, roughly 20% of them trucks, projected to reach 330 by 2046. The structure is 54 ft (16.5 m) long and 22 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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-107B Reed RD over Johnny Run built?
It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1973.
What condition is TR-107B Reed RD over Johnny Run 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-107B Reed RD over Johnny Run carry?
About 225 vehicles per day (2024 count), of which roughly 20% are trucks.
How long is TR-107B Reed RD over Johnny Run?
The structure is 54 ft (16.5 m) long with a longest span of 23 ft (7 m) and a deck 22 ft wide.
Who owns TR-107B Reed RD over Johnny Run?
It is owned by the Town or Township Highway Agency.