IH 39 SB/90 EB over Ramp IH 39NB/90WB-USH 12
GoodDane County, Wisconsin · 4.2M E JCT IH 94 (a) · Structure no. B13046100000000
- Built
- 1997
- 28 years old
- Condition
- Good
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 144 ft
- 3 main spans
- Daily traffic
- 13,540
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
IH 39 SB/90 EB over Ramp IH 39NB/90WB-USH 12 is a prestressed concrete continuous stringer/multi-beam or girder carrying IH 39 SB/90 EB over Ramp IH 39NB/90WB-USH 12 in Dane County, Wisconsin. It was built in 1997, so it is 28 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 13,540 vehicles a day, roughly 11% of them trucks, projected to reach 52,508 by 2042. The structure is 144 ft (43.9 m) long and 64 ft wide. If it were closed, the detour would be 2.5 mi (4 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IH 39 SB/90 EB over Ramp IH 39NB/90WB-USH 12 built?
It was built in 1997, making it 28 years old in 2025.
What condition is IH 39 SB/90 EB over Ramp IH 39NB/90WB-USH 12 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 July 2023.
How much traffic does IH 39 SB/90 EB over Ramp IH 39NB/90WB-USH 12 carry?
About 13,540 vehicles per day (2022 count), of which roughly 11% are trucks.
How long is IH 39 SB/90 EB over Ramp IH 39NB/90WB-USH 12?
The structure is 144 ft (43.9 m) long with a longest span of 60 ft (18.3 m) and a deck 64 ft wide.
Who owns IH 39 SB/90 EB over Ramp IH 39NB/90WB-USH 12?
It is owned by the State Highway Agency.