TR-51 Kinsman RD over Armstrong Run
FairGrundy County, Illinois · .69 S Dupont Road · Structure no. 032314600000000
- Built
- 2014
- 11 years old
- Condition
- Fair
- inspected October 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 70 ft
- 1 main span
- Daily traffic
- 75
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR-51 Kinsman RD over Armstrong Run is a prestressed concrete box beam or girders - multiple carrying TR-51 Kinsman RD over Armstrong Run in Grundy County, Illinois. It was built in 2014, so it is 11 years old, younger than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 75 vehicles a day, roughly 35% of them trucks, projected to reach 150 by 2046. The structure is 70 ft (21.2 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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-51 Kinsman RD over Armstrong Run built?
It was built in 2014, making it 11 years old in 2025.
What condition is TR-51 Kinsman RD over Armstrong Run in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.
How much traffic does TR-51 Kinsman RD over Armstrong Run carry?
About 75 vehicles per day (2024 count), of which roughly 35% are trucks.
How long is TR-51 Kinsman RD over Armstrong Run?
The structure is 70 ft (21.2 m) long with a longest span of 67 ft (20.4 m) and a deck 27 ft wide.
Who owns TR-51 Kinsman RD over Armstrong Run?
It is owned by the Town or Township Highway Agency.