US Bridges

Lrd Hardtke DR over Little Muskego Lake

Fair

Waukesha County, Wisconsin · 0.5 MI SE JCT Martin Driv · Structure no. P67093000000000

Built
1960
65 years old, rebuilt 2004
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
27 ft
1 main span
Daily traffic
530
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Hardtke DR over Little Muskego Lake is a concrete continuous slab carrying Lrd Hardtke DR over Little Muskego Lake in Waukesha County, Wisconsin. It was built in 1960 and reconstructed in 2004, so it is 65 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 530 vehicles a day, projected to reach 583 by 2043. The structure is 27 ft (8.2 m) long and 21 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesLrd Hardtke DR
CrossesLittle Muskego Lake
Location0.5 MI SE JCT Martin Driv
RouteCity Street 0
CountyWaukesha County
StateWisconsin
Coordinates42.92421, -88.1411
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span27 ft (8.1 m)
Deck width21 ft (6.5 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic530 (2022)
Projected traffic583 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$169,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd Hardtke DR over Little Muskego Lake built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2004.

What condition is Lrd Hardtke DR over Little Muskego Lake 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 October 2024.

How much traffic does Lrd Hardtke DR over Little Muskego Lake carry?

About 530 vehicles per day (2022 count).

How long is Lrd Hardtke DR over Little Muskego Lake?

The structure is 27 ft (8.2 m) long with a longest span of 27 ft (8.1 m) and a deck 21 ft wide.

Who owns Lrd Hardtke DR over Little Muskego Lake?

It is owned by the City or Municipal Highway Agency.