US Bridges

Lrd Muskego Dam RD over Muskego Canal

Fair

Waukesha County, Wisconsin · 0.5M W JCT Sth 36 · Structure no. P67073600000000

Built
1925
100 years old, rebuilt 1940
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
3,100
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Muskego Dam RD over Muskego Canal is a concrete slab carrying Lrd Muskego Dam RD over Muskego Canal in Waukesha County, Wisconsin. It was built in 1925 and reconstructed in 1940, so it is 100 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 3,100 vehicles a day, projected to reach 3,126 by 2043. The structure is 32 ft (9.8 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesLrd Muskego Dam RD
CrossesMuskego Canal
Location0.5M W JCT Sth 36
RouteCity Street 0
CountyWaukesha County
StateWisconsin
Coordinates42.85048, -88.13199
Functional classUrban 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
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating73.9 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.6 m)
Deck width29 ft (8.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2022)
Projected traffic3,126 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd Muskego Dam RD over Muskego Canal built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1940.

What condition is Lrd Muskego Dam RD over Muskego Canal 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 Muskego Dam RD over Muskego Canal carry?

About 3,100 vehicles per day (2022 count).

How long is Lrd Muskego Dam RD over Muskego Canal?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.6 m) and a deck 29 ft wide.

Who owns Lrd Muskego Dam RD over Muskego Canal?

It is owned by the City or Municipal Highway Agency.