Sth 181 over Menomonee River
FairMilwaukee County, Wisconsin · 1.0M N JCT Ush 18 · Structure no. B40052900000000
- Built
- 1981
- 44 years old
- Condition
- Fair
- inspected August 2024
- Type
- Box Beam or Girders - Single or Spread
- Steel Continuous
- Length
- 539 ft
- 4 main spans
- Daily traffic
- 11,900
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Sth 181 over Menomonee River is a steel continuous box beam or girders - single or spread carrying Sth 181 over Menomonee River in Milwaukee County, Wisconsin. It was built in 1981, so it is 44 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 11,900 vehicles a day, roughly 3% of them trucks, projected to reach 24,579 by 2043. The structure is 539 ft (164.3 m) long and 58 ft wide. If it were closed, the detour would be 2.5 mi (4 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sth 181 over Menomonee River built?
It was built in 1981, making it 44 years old in 2025.
What condition is Sth 181 over Menomonee River 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 2024.
How much traffic does Sth 181 over Menomonee River carry?
About 11,900 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is Sth 181 over Menomonee River?
The structure is 539 ft (164.3 m) long with a longest span of 158 ft (48.2 m) and a deck 58 ft wide.
Who owns Sth 181 over Menomonee River?
It is owned by the City or Municipal Highway Agency.