IH 41/USH 45/STH 1 over Cth W Mill RD (cth S)
PoorMilwaukee County, Wisconsin · 1.2 MI N JCT Cth E · Structure no. B40034900000000
- Built
- 1967
- 58 years old, rebuilt 1986
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 203 ft
- 3 main spans
- Daily traffic
- 58,500
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
IH 41/USH 45/STH 1 over Cth W Mill RD (cth S) is a prestressed concrete stringer/multi-beam or girder carrying IH 41/USH 45/STH 1 over Cth W Mill RD (cth S) in Milwaukee County, Wisconsin. It was built in 1967 and reconstructed in 1986, so it is 58 years old, older than the Wisconsin average of 40.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 58,500 vehicles a day, roughly 3% of them trucks, projected to reach 55,333 by 2043. The structure is 203 ft (62 m) long and 65 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IH 41/USH 45/STH 1 over Cth W Mill RD (cth S) built?
It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1986.
What condition is IH 41/USH 45/STH 1 over Cth W Mill RD (cth S) in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.
How much traffic does IH 41/USH 45/STH 1 over Cth W Mill RD (cth S) carry?
About 58,500 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is IH 41/USH 45/STH 1 over Cth W Mill RD (cth S)?
The structure is 203 ft (62 m) long with a longest span of 73 ft (22.4 m) and a deck 65 ft wide.
Who owns IH 41/USH 45/STH 1 over Cth W Mill RD (cth S)?
It is owned by the State Highway Agency.