US Bridges

Sth 42 over Unnamed Trib to Lake Mic

Good

Manitowoc County, Wisconsin · 0.2 MI S of County Line · Structure no. B36022700000000

Built
2015
10 years old
Condition
Good
inspected October 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
74 ft
1 main span
Daily traffic
1,300
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 42 over Unnamed Trib to Lake Mic is a prestressed concrete stringer/multi-beam or girder carrying Sth 42 over Unnamed Trib to Lake Mic in Manitowoc County, Wisconsin. It was built in 2015, so it is 10 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 1,300 vehicles a day, roughly 9% of them trucks, projected to reach 2,500 by 2041. The structure is 74 ft (22.5 m) long and 43 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

CarriesSth 42
CrossesUnnamed Trib to Lake Mic
Location0.2 MI S of County Line
RouteState Highway 42
Coordinates44.32492, -87.54706
Functional classRural Minor Arterial

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 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length74 ft (22.5 m)
Longest span70 ft (21.3 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2022)
Projected traffic2,500 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Sth 42 over Unnamed Trib to Lake Mic built?

It was built in 2015, making it 10 years old in 2025.

What condition is Sth 42 over Unnamed Trib to Lake Mic 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 2022.

How much traffic does Sth 42 over Unnamed Trib to Lake Mic carry?

About 1,300 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Sth 42 over Unnamed Trib to Lake Mic?

The structure is 74 ft (22.5 m) long with a longest span of 70 ft (21.3 m) and a deck 43 ft wide.

Who owns Sth 42 over Unnamed Trib to Lake Mic?

It is owned by the State Highway Agency.