Ch 18 over Otter Creek
GoodMacoupin County, Illinois · 1 Mi. E. Hettick · Structure no. 059302100000000
- Built
- 1955
- 70 years old, rebuilt 2001
- Condition
- Good
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 171 ft
- 4 main spans
- Daily traffic
- 275
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Ch 18 over Otter Creek is a steel continuous stringer/multi-beam or girder carrying Ch 18 over Otter Creek in Macoupin County, Illinois. It was built in 1955 and reconstructed in 2001, so it is 70 years old, older 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 275 vehicles a day, roughly 7% of them trucks, projected to reach 278 by 2046. The structure is 171 ft (52.1 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ch 18 over Otter Creek built?
It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2001.
What condition is Ch 18 over Otter Creek 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 March 2023.
How much traffic does Ch 18 over Otter Creek carry?
About 275 vehicles per day (2021 count), of which roughly 7% are trucks.
How long is Ch 18 over Otter Creek?
The structure is 171 ft (52.1 m) long with a longest span of 43 ft (13.1 m) and a deck 30 ft wide.
Who owns Ch 18 over Otter Creek?
It is owned by the County Highway Agency.