IH 39 SB / IH 90/9 over Sth 19
FairDane County, Wisconsin · 4M S JCT Cth I · Structure no. B13009100000000
- Built
- 1960
- 65 years old, rebuilt 1984
- Condition
- Fair
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 204 ft
- 4 main spans
- Daily traffic
- 30,050
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
IH 39 SB / IH 90/9 over Sth 19 is a steel continuous stringer/multi-beam or girder carrying IH 39 SB / IH 90/9 over Sth 19 in Dane County, Wisconsin. It was built in 1960 and reconstructed in 1984, so it is 65 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 30,050 vehicles a day, roughly 13% of them trucks, projected to reach 36,060 by 2042. The structure is 204 ft (62.1 m) long and 58 ft wide.
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IH 39 SB / IH 90/9 over Sth 19 built?
It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1984.
What condition is IH 39 SB / IH 90/9 over Sth 19 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 August 2023.
How much traffic does IH 39 SB / IH 90/9 over Sth 19 carry?
About 30,050 vehicles per day (2022 count), of which roughly 13% are trucks.
How long is IH 39 SB / IH 90/9 over Sth 19?
The structure is 204 ft (62.1 m) long with a longest span of 56 ft (17.2 m) and a deck 58 ft wide.
Who owns IH 39 SB / IH 90/9 over Sth 19?
It is owned by the State Highway Agency.