Sth 31 NB over Root River
GoodRacine County, Wisconsin · 2.0 MI N JCT Sth 38 · Structure no. B51008300000000
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected April 2022
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 258 ft
- 3 main spans
- Daily traffic
- 6,050
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 31 NB over Root River is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 31 NB over Root River in Racine 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 6,050 vehicles a day, roughly 8% of them trucks, projected to reach 7,260 by 2041. The structure is 258 ft (78.7 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
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 Sth 31 NB over Root River built?
It was built in 1999, making it 26 years old in 2025.
What condition is Sth 31 NB over Root River 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 2022.
How much traffic does Sth 31 NB over Root River carry?
About 6,050 vehicles per day (2021 count), of which roughly 8% are trucks.
How long is Sth 31 NB over Root River?
The structure is 258 ft (78.7 m) long with a longest span of 88 ft (26.8 m) and a deck 43 ft wide.
Who owns Sth 31 NB over Root River?
It is owned by the State Highway Agency.