CH-5 over Mchenry Slough
FairWhite County, Illinois · 3.25 MI S Crossville · Structure no. 097322600000000
- Built
- 1994
- 31 years old
- Condition
- Fair
- inspected January 2025
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 63 ft
- 1 main span
- Daily traffic
- 50
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
CH-5 over Mchenry Slough is a prestressed concrete box beam or girders - multiple carrying CH-5 over Mchenry Slough in White 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 50 vehicles a day, roughly 26% of them trucks, projected to reach 25 by 2046. The structure is 63 ft (19.1 m) long and 24 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was CH-5 over Mchenry Slough built?
It was built in 1994, making it 31 years old in 2025.
What condition is CH-5 over Mchenry Slough 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 January 2025.
How much traffic does CH-5 over Mchenry Slough carry?
About 50 vehicles per day (2024 count), of which roughly 26% are trucks.
How long is CH-5 over Mchenry Slough?
The structure is 63 ft (19.1 m) long with a longest span of 59 ft (17.9 m) and a deck 24 ft wide.
Who owns CH-5 over Mchenry Slough?
It is owned by the County Highway Agency.