US Bridges

Cth Nn over N Br Milwaukee River

Fair

Sheboygan County, Wisconsin · 0.1M N JCT Cth F to E · Structure no. P59092900000000

Built
1932
93 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
24 ft
1 main span
Daily traffic
205
2022 count
Owner
County
County Highway Agency

About this bridge

Cth Nn over N Br Milwaukee River is a concrete stringer/multi-beam or girder carrying Cth Nn over N Br Milwaukee River in Sheboygan County, Wisconsin. It was built in 1932, so it is 93 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 205 vehicles a day, projected to reach 225 by 2042. The structure is 24 ft (7.3 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCth Nn
CrossesN Br Milwaukee River
Location0.1M N JCT Cth F to E
RouteCounty Highway 0NN
CountySheboygan County
StateWisconsin
Coordinates43.64558, -88.00087
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.2 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span23 ft (6.9 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic205 (2022)
Projected traffic225 by 2042
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

OwnerCounty Highway Agency
Maintained byCounty 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 Cth Nn over N Br Milwaukee River built?

It was built in 1932, making it 93 years old in 2025.

What condition is Cth Nn over N Br Milwaukee River 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 August 2023.

How much traffic does Cth Nn over N Br Milwaukee River carry?

About 205 vehicles per day (2022 count).

How long is Cth Nn over N Br Milwaukee River?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (6.9 m) and a deck 30 ft wide.

Who owns Cth Nn over N Br Milwaukee River?

It is owned by the County Highway Agency.