Township Road 451 over Girder CR
PoorMacoupin County, Illinois · 4.1 M E Brighton · Structure no. 059327300000000
- Built
- 1900
- 125 years old, rebuilt 1971
- Condition
- Poor
- inspected January 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 128 ft
- 3 main spans
- Daily traffic
- 200
- 2021 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
Township Road 451 over Girder CR is a prestressed concrete box beam or girders - multiple carrying Township Road 451 over Girder CR in Macoupin County, Illinois. It was built in 1900 and reconstructed in 1971, so it is 125 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 200 vehicles a day, roughly 5% of them trucks, projected to reach 202 by 2046. The structure is 128 ft (38.9 m) long and 27 ft wide. If it were closed, the detour would be 3.1 mi (5 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Township Road 451 over Girder CR built?
It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1971.
What condition is Township Road 451 over Girder CR in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2023.
How much traffic does Township Road 451 over Girder CR carry?
About 200 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is Township Road 451 over Girder CR?
The structure is 128 ft (38.9 m) long with a longest span of 41 ft (12.4 m) and a deck 27 ft wide.
Who owns Township Road 451 over Girder CR?
It is owned by the Town or Township Highway Agency.