TR 78 over Macoupin Creek
GoodGreene County, Illinois · 8 MI SE of Eldred · Structure no. 031507300000000
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 328 ft
- 4 main spans
- Daily traffic
- 25
- 2022 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 78 over Macoupin Creek is a steel stringer/multi-beam or girder carrying TR 78 over Macoupin Creek in Greene County, Illinois. It was built in 1988, so it is 37 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 25 vehicles a day, roughly 20% of them trucks, projected to reach 25 by 2046. The structure is 328 ft (100 m) long and 27 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 78 over Macoupin Creek built?
It was built in 1988, making it 37 years old in 2025.
What condition is TR 78 over Macoupin 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 February 2024.
How much traffic does TR 78 over Macoupin Creek carry?
About 25 vehicles per day (2022 count), of which roughly 20% are trucks.
How long is TR 78 over Macoupin Creek?
The structure is 328 ft (100 m) long with a longest span of 110 ft (33.5 m) and a deck 27 ft wide.
Who owns TR 78 over Macoupin Creek?
It is owned by the Town or Township Highway Agency.