Sth 78 over Blue Mounds Branch
GoodIowa County, Wisconsin · 0.6M N JCT Cth H · Structure no. B25009200000000
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected April 2024
- Type
- Slab
- Concrete
- Length
- 52 ft
- 1 main span
- Daily traffic
- 1,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 78 over Blue Mounds Branch is a concrete slab carrying Sth 78 over Blue Mounds Branch in Iowa County, Wisconsin. It was built in 1999, so it is 26 years old, younger than the Wisconsin average of 40.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,500 vehicles a day, roughly 12% of them trucks, projected to reach 1,610 by 2043. The structure is 52 ft (15.8 m) long and 37 ft wide. If it were closed, the detour would be 52.8 mi (85 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 78 over Blue Mounds Branch built?
It was built in 1999, making it 26 years old in 2025.
What condition is Sth 78 over Blue Mounds Branch in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.
How much traffic does Sth 78 over Blue Mounds Branch carry?
About 1,500 vehicles per day (2022 count), of which roughly 12% are trucks.
How long is Sth 78 over Blue Mounds Branch?
The structure is 52 ft (15.8 m) long with a longest span of 49 ft (15 m) and a deck 37 ft wide.
Who owns Sth 78 over Blue Mounds Branch?
It is owned by the State Highway Agency.