CH-18 over Trib Bob Branch
GoodWayne County, Illinois · NE Sam Dale Lake · Structure no. 096336600000000
- Built
- 1987
- 38 years old
- Condition
- Good
- inspected February 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 49 ft
- 1 main span
- Daily traffic
- 100
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
CH-18 over Trib Bob Branch is a prestressed concrete box beam or girders - multiple carrying CH-18 over Trib Bob Branch in Wayne County, Illinois. It was built in 1987, so it is 38 years old, younger than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 100 vehicles a day, roughly 23% of them trucks, projected to reach 77 by 2046. The structure is 49 ft (14.9 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| 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 CH-18 over Trib Bob Branch built?
It was built in 1987, making it 38 years old in 2025.
What condition is CH-18 over Trib Bob Branch in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.
How much traffic does CH-18 over Trib Bob Branch carry?
About 100 vehicles per day (2022 count), of which roughly 23% are trucks.
How long is CH-18 over Trib Bob Branch?
The structure is 49 ft (14.9 m) long with a longest span of 48 ft (14.6 m) and a deck 28 ft wide.
Who owns CH-18 over Trib Bob Branch?
It is owned by the County Highway Agency.