Cth M over Big Eau Pleine River
PoorMarathon County, Wisconsin · 0.3M N JCT Sth 153 · Structure no. B37017100000000
- Built
- 1975
- 50 years old
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 418 ft
- 4 main spans
- Daily traffic
- 637
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Cth M over Big Eau Pleine River is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth M over Big Eau Pleine River in Marathon County, Wisconsin. It was built in 1975, so it is 50 years old, older than the Wisconsin average of 40.3 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 637 vehicles a day, projected to reach 687 by 2043. The structure is 418 ft (127.4 m) long and 37 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 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Cth M over Big Eau Pleine River built?
It was built in 1975, making it 50 years old in 2025.
What condition is Cth M over Big Eau Pleine River 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 July 2024.
How much traffic does Cth M over Big Eau Pleine River carry?
About 637 vehicles per day (2024 count).
How long is Cth M over Big Eau Pleine River?
The structure is 418 ft (127.4 m) long with a longest span of 103 ft (31.5 m) and a deck 37 ft wide.
Who owns Cth M over Big Eau Pleine River?
It is owned by the County Highway Agency.