US Bridges

Lrd Michigan Stree over Sturgeon Bay

Fair

Door County, Wisconsin · 1.0M N JCT Sth 42 · Structure no. B15010000030000

Built
1930
95 years old, rebuilt 1979
Condition
Fair
inspected May 2024
Type
Movable - Bascule
Steel
Length
161 ft
1 main span
Daily traffic
5,400
2022 count
Owner
State
State Highway Agency

About this bridge

Lrd Michigan Stree over Sturgeon Bay is a steel movable - bascule carrying Lrd Michigan Stree over Sturgeon Bay in Door County, Wisconsin. It was built in 1930 and reconstructed in 1979, so it is 95 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 5,400 vehicles a day, projected to reach 15,246 by 2043. The structure is 161 ft (49.2 m) long and 35 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesLrd Michigan Stree
CrossesSturgeon Bay
Location1.0M N JCT Sth 42
RouteCity Street 0
CountyDoor County
StateWisconsin
Coordinates44.83247, -87.38008
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
Deck8 Very GoodNo problems noted.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating46.4 US tons

Structure

Structure typeMovable - Bascule
MaterialSteel
DeckOpen grating
Main spans1
Design loadH 15
Structure length161 ft (49.2 m)
Longest span161 ft (49.2 m)
Deck width35 ft (10.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck12 ft (3.5 m)

Traffic and service

Average daily traffic5,400 (2022)
Projected traffic15,246 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 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$1.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd Michigan Stree over Sturgeon Bay built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1979.

What condition is Lrd Michigan Stree over Sturgeon Bay 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 May 2024.

How much traffic does Lrd Michigan Stree over Sturgeon Bay carry?

About 5,400 vehicles per day (2022 count).

How long is Lrd Michigan Stree over Sturgeon Bay?

The structure is 161 ft (49.2 m) long with a longest span of 161 ft (49.2 m) and a deck 35 ft wide.

Who owns Lrd Michigan Stree over Sturgeon Bay?

It is owned by the State Highway Agency.