Cth L over Grass Creek
PoorPosted for loadMarathon County, Wisconsin · 1.7M E JCT Cth S · Structure no. B37008800000000
- Built
- 1961
- 64 years old
- Condition
- Poor
- inspected August 2024
- Type
- Slab
- Concrete
- Length
- 28 ft
- 1 main span
- Daily traffic
- 478
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Cth L over Grass Creek is a concrete slab carrying Cth L over Grass Creek in Marathon County, Wisconsin. It was built in 1961, so it is 64 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. Its operating status is: posted for load restriction.
It carries about 478 vehicles a day, projected to reach 518 by 2043. The structure is 28 ft (8.5 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 L over Grass Creek built?
It was built in 1961, making it 64 years old in 2025.
What condition is Cth L over Grass Creek 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 August 2024.
How much traffic does Cth L over Grass Creek carry?
About 478 vehicles per day (2024 count).
How long is Cth L over Grass Creek?
The structure is 28 ft (8.5 m) long with a longest span of 25 ft (7.7 m) and a deck 29 ft wide.
Who owns Cth L over Grass Creek?
It is owned by the County Highway Agency.