US Bridges

Lrd Mill Street over Ashippun River

Good

Waukesha County, Wisconsin · 0.5 M S JCT Cth Cw · Structure no. B67000400000000

Built
2013
12 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
341
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Mill Street over Ashippun River is a prestressed concrete stringer/multi-beam or girder carrying Lrd Mill Street over Ashippun River in Waukesha County, Wisconsin. It was built in 2013, so it is 12 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 341 vehicles a day, roughly 4% of them trucks, projected to reach 375 by 2043. The structure is 73 ft (22.1 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesLrd Mill Street
CrossesAshippun River
Location0.5 M S JCT Cth Cw
RouteCity Street 0
Coordinates43.17196, -88.49975
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length73 ft (22.1 m)
Longest span70 ft (21.3 m)
Deck width34 ft (10.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic341 (2022)
Projected traffic375 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Lrd Mill Street over Ashippun River built?

It was built in 2013, making it 12 years old in 2025.

What condition is Lrd Mill Street over Ashippun 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 October 2024.

How much traffic does Lrd Mill Street over Ashippun River carry?

About 341 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Lrd Mill Street over Ashippun River?

The structure is 73 ft (22.1 m) long with a longest span of 70 ft (21.3 m) and a deck 34 ft wide.

Who owns Lrd Mill Street over Ashippun River?

It is owned by the Town or Township Highway Agency.