I 24 WB over TR 77 Bowman Bottoms
FairJohnson County, Illinois · 3.1 MI NW US 45 · Structure no. 044003800000000
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 111 ft
- 3 main spans
- Daily traffic
- 10,300
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I 24 WB over TR 77 Bowman Bottoms is a prestressed concrete continuous stringer/multi-beam or girder carrying I 24 WB over TR 77 Bowman Bottoms in Johnson County, Illinois. It was built in 1971, so it is 54 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 6 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 10,300 vehicles a day, roughly 32% of them trucks, projected to reach 12,075 by 2046. The structure is 111 ft (33.8 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 24 WB over TR 77 Bowman Bottoms built?
It was built in 1971, making it 54 years old in 2025.
What condition is I 24 WB over TR 77 Bowman Bottoms 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 April 2023.
How much traffic does I 24 WB over TR 77 Bowman Bottoms carry?
About 10,300 vehicles per day (2024 count), of which roughly 32% are trucks.
How long is I 24 WB over TR 77 Bowman Bottoms?
The structure is 111 ft (33.8 m) long with a longest span of 47 ft (14.3 m) and a deck 42 ft wide.
Who owns I 24 WB over TR 77 Bowman Bottoms?
It is owned by the State Highway Agency.