US Bridges

Sth 181 Sb-N 76th over Sth 145-W Fond Du Lac Av

Fair

Milwaukee County, Wisconsin · 2.3M S JCT Cth Pp · Structure no. B40025500000000

Built
1964
61 years old, rebuilt 2024
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
291 ft
5 main spans
Daily traffic
14,400
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 181 Sb-N 76th over Sth 145-W Fond Du Lac Av is a steel continuous stringer/multi-beam or girder carrying Sth 181 Sb-N 76th over Sth 145-W Fond Du Lac Av in Milwaukee County, Wisconsin. It was built in 1964 and reconstructed in 2024, so it is 61 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 14,400 vehicles a day, roughly 3% of them trucks, projected to reach 15,800 by 2042. The structure is 291 ft (88.8 m) long and 45 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSth 181 Sb-N 76th
CrossesSth 145-W Fond Du Lac Av
Location2.3M S JCT Cth Pp
RouteState Highway 181
CountyMilwaukee County
StateWisconsin
Coordinates43.1157, -88.00623
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length291 ft (88.8 m)
Longest span85 ft (25.8 m)
Deck width45 ft (13.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,400 (2022)
Projected traffic15,800 by 2042
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$2.2 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sth 181 Sb-N 76th over Sth 145-W Fond Du Lac Av built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2024.

What condition is Sth 181 Sb-N 76th over Sth 145-W Fond Du Lac Av 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 July 2024.

How much traffic does Sth 181 Sb-N 76th over Sth 145-W Fond Du Lac Av carry?

About 14,400 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Sth 181 Sb-N 76th over Sth 145-W Fond Du Lac Av?

The structure is 291 ft (88.8 m) long with a longest span of 85 ft (25.8 m) and a deck 45 ft wide.

Who owns Sth 181 Sb-N 76th over Sth 145-W Fond Du Lac Av?

It is owned by the State Highway Agency.