STH66EB over Mill Creek
GoodPortage County, Wisconsin · 1.0M W JCT Cth Pp · Structure no. B49017000000000
- Built
- 2012
- 13 years old
- Condition
- Good
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 154 ft
- 2 main spans
- Daily traffic
- 3,600
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
STH66EB over Mill Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying STH66EB over Mill Creek in Portage County, Wisconsin. It was built in 2012, so it is 13 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 3,600 vehicles a day, roughly 4% of them trucks, projected to reach 3,700 by 2042. The structure is 154 ft (46.9 m) long and 47 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was STH66EB over Mill Creek built?
It was built in 2012, making it 13 years old in 2025.
What condition is STH66EB over Mill Creek 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 September 2023.
How much traffic does STH66EB over Mill Creek carry?
About 3,600 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is STH66EB over Mill Creek?
The structure is 154 ft (46.9 m) long with a longest span of 75 ft (22.9 m) and a deck 47 ft wide.
Who owns STH66EB over Mill Creek?
It is owned by the State Highway Agency.