Il 173 over Beaver Creek
FairBoone County, Illinois · 0.5 Mi. Sw. Capron · Structure no. 004200400000000
- Built
- 1994
- 31 years old
- Condition
- Fair
- inspected February 2023
- Type
- Culvert
- Concrete
- Length
- 26 ft
- 3 main spans
- Daily traffic
- 4,550
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
Il 173 over Beaver Creek is a concrete culvert carrying Il 173 over Beaver Creek in Boone County, Illinois. It was built in 1994, so it is 31 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 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 4,550 vehicles a day, roughly 10% of them trucks, projected to reach 5,044 by 2046. The structure is 26 ft (7.9 m) long and 46 ft wide. If it were closed, the detour would be 21.7 mi (35 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 |
|---|---|---|
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Il 173 over Beaver Creek built?
It was built in 1994, making it 31 years old in 2025.
What condition is Il 173 over Beaver Creek 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 February 2023.
How much traffic does Il 173 over Beaver Creek carry?
About 4,550 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is Il 173 over Beaver Creek?
The structure is 26 ft (7.9 m) long with a longest span of 9 ft (2.6 m) and a deck 46 ft wide.
Who owns Il 173 over Beaver Creek?
It is owned by the State Highway Agency.