Cth R over Rock River
FairDodge County, Wisconsin · 4.5M N JCT Cth Me · Structure no. B14034300000000
- Built
- 1938
- 87 years old, rebuilt 1983
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 113 ft
- 2 main spans
- Daily traffic
- 2,300
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Cth R over Rock River is a steel stringer/multi-beam or girder carrying Cth R over Rock River in Dodge County, Wisconsin. It was built in 1938 and reconstructed in 1983, so it is 87 years old, older than the Wisconsin average of 40.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 2,300 vehicles a day, roughly 5% of them trucks, projected to reach 2,760 by 2041. The structure is 113 ft (34.3 m) long and 42 ft wide. If it were closed, the detour would be 12.4 mi (20 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 R over Rock River built?
It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1983.
What condition is Cth R over Rock River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.
How much traffic does Cth R over Rock River carry?
About 2,300 vehicles per day (2021 count), of which roughly 5% are trucks.
How long is Cth R over Rock River?
The structure is 113 ft (34.3 m) long with a longest span of 54 ft (16.6 m) and a deck 42 ft wide.
Who owns Cth R over Rock River?
It is owned by the County Highway Agency.