IH 43 SB over Cnw RR
FairRock County, Wisconsin · 2.1M S JCT Sth 140 to S · Structure no. B53011200000000
- Built
- 1975
- 50 years old
- Condition
- Fair
- inspected March 2024
- Type
- Slab
- Concrete Continuous
- Length
- 164 ft
- 3 main spans
- Daily traffic
- 8,700
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
IH 43 SB over Cnw RR is a concrete continuous slab carrying IH 43 SB over Cnw RR in Rock 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 fair condition with a lowest component rating of 6 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 8,700 vehicles a day, roughly 10% of them trucks, projected to reach 10,440 by 2043. The structure is 164 ft (50 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IH 43 SB over Cnw RR built?
It was built in 1975, making it 50 years old in 2025.
What condition is IH 43 SB over Cnw RR 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 March 2024.
How much traffic does IH 43 SB over Cnw RR carry?
About 8,700 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is IH 43 SB over Cnw RR?
The structure is 164 ft (50 m) long with a longest span of 63 ft (19.2 m) and a deck 43 ft wide.
Who owns IH 43 SB over Cnw RR?
It is owned by the State Highway Agency.