TR 290 over Mackinaw River
FairMcLean County, Illinois · 4.8 MI SW Gridley · Structure no. 057461400000000
- Built
- 1973
- 52 years old
- Condition
- Fair
- inspected March 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 238 ft
- 4 main spans
- Daily traffic
- 225
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 290 over Mackinaw River is a steel continuous stringer/multi-beam or girder carrying TR 290 over Mackinaw River in McLean County, Illinois. It was built in 1973, so it is 52 years old, older 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 225 vehicles a day, roughly 33% of them trucks, projected to reach 202 by 2046. The structure is 238 ft (72.5 m) long and 28 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 5 or 6. Minor deterioration is present but the structure is sound.
| 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 290 over Mackinaw River built?
It was built in 1973, making it 52 years old in 2025.
What condition is TR 290 over Mackinaw River 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 March 2024.
How much traffic does TR 290 over Mackinaw River carry?
About 225 vehicles per day (2024 count), of which roughly 33% are trucks.
How long is TR 290 over Mackinaw River?
The structure is 238 ft (72.5 m) long with a longest span of 63 ft (19.2 m) and a deck 28 ft wide.
Who owns TR 290 over Mackinaw River?
It is owned by the Town or Township Highway Agency.