US Bridges

Cth Ab Main ST over School Creek

Poor

Kewaunee County, Wisconsin · 0.8M N JCT Sth 54 · Structure no. B31090600000000

Built
1932
93 years old, rebuilt 1958
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
48 ft
1 main span
Daily traffic
1,900
2021 count
Owner
County
County Highway Agency

About this bridge

Cth Ab Main ST over School Creek is a concrete stringer/multi-beam or girder carrying Cth Ab Main ST over School Creek in Kewaunee County, Wisconsin. It was built in 1932 and reconstructed in 1958, 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,900 vehicles a day, projected to reach 1,899 by 2043. The structure is 48 ft (14.5 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCth Ab Main ST
CrossesSchool Creek
Location0.8M N JCT Sth 54
RouteCounty Highway 0AB
Coordinates44.556, -87.70308
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating25 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length48 ft (14.5 m)
Longest span42 ft (12.9 m)
Deck width42 ft (12.9 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2021)
Projected traffic1,899 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$304,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth Ab Main ST over School Creek built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1958.

What condition is Cth Ab Main ST over School Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Cth Ab Main ST over School Creek carry?

About 1,900 vehicles per day (2021 count).

How long is Cth Ab Main ST over School Creek?

The structure is 48 ft (14.5 m) long with a longest span of 42 ft (12.9 m) and a deck 42 ft wide.

Who owns Cth Ab Main ST over School Creek?

It is owned by the County Highway Agency.