US Bridges

Cth S W Mill RD over Little Menomonee River

Good

Milwaukee County, Wisconsin · 1.4M W JCT Sth 181 · Structure no. B40021200000000

Built
2004
21 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete Continuous
Length
42 ft
3 main spans
Daily traffic
13,000
2022 count
Owner
County
County Highway Agency

About this bridge

Cth S W Mill RD over Little Menomonee River is a concrete continuous culvert carrying Cth S W Mill RD over Little Menomonee River in Milwaukee County, Wisconsin. It was built in 2004, so it is 21 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 13,000 vehicles a day, roughly 3% of them trucks, projected to reach 12,096 by 2043. The structure is 42 ft (12.9 m) long. If it were closed, the detour would be 2.5 mi (4 km).

CarriesCth S W Mill RD
CrossesLittle Menomonee River
Location1.4M W JCT Sth 181
RouteCounty Highway 0
Coordinates43.13391, -88.03262
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.8 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length42 ft (12.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,000 (2022)
Projected traffic12,096 by 2043
Trucks3%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth S W Mill RD over Little Menomonee River built?

It was built in 2004, making it 21 years old in 2025.

What condition is Cth S W Mill RD over Little Menomonee 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 2024.

How much traffic does Cth S W Mill RD over Little Menomonee River carry?

About 13,000 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Cth S W Mill RD over Little Menomonee River?

The structure is 42 ft (12.9 m) long with a longest span of 12 ft (3.7 m).

Who owns Cth S W Mill RD over Little Menomonee River?

It is owned by the County Highway Agency.