Sth 83 over IH 43
FairWaukesha County, Wisconsin · 1.8 MI N JCT Cth L · Structure no. B67012900000000
- Built
- 1971
- 54 years old
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 253 ft
- 2 main spans
- Daily traffic
- 25,400
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Sth 83 over IH 43 is a steel continuous stringer/multi-beam or girder carrying Sth 83 over IH 43 in Waukesha County, Wisconsin. It was built in 1971, so it is 54 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 5 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 25,400 vehicles a day, roughly 4% of them trucks, projected to reach 30,480 by 2042. The structure is 253 ft (77.1 m) long and 103 ft wide. If it were closed, the detour would be 10.6 mi (17 km).
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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 83 over IH 43 built?
It was built in 1971, making it 54 years old in 2025.
What condition is Sth 83 over IH 43 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 September 2023.
How much traffic does Sth 83 over IH 43 carry?
About 25,400 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is Sth 83 over IH 43?
The structure is 253 ft (77.1 m) long with a longest span of 124 ft (37.9 m) and a deck 103 ft wide.
Who owns Sth 83 over IH 43?
It is owned by the State Highway Agency.