US Bridges

Cth Y over Seven Mile Creek

Fair

Fond du Lac County, Wisconsin · 1.2M S JCT Cth T · Structure no. B20068200000000

Built
1923
102 years old, rebuilt 1976
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
33 ft
1 main span
Daily traffic
795
2022 count
Owner
County
County Highway Agency

About this bridge

Cth Y over Seven Mile Creek is a concrete stringer/multi-beam or girder carrying Cth Y over Seven Mile Creek in Fond du Lac County, Wisconsin. It was built in 1923 and reconstructed in 1976, so it is 102 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 795 vehicles a day, projected to reach 874 by 2042. The structure is 33 ft (10.1 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCth Y
CrossesSeven Mile Creek
Location1.2M S JCT Cth T
RouteCounty Highway 0Y
CountyFond du Lac County
StateWisconsin
Coordinates43.74798, -88.57347
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length33 ft (10.1 m)
Longest span32 ft (9.7 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic795 (2022)
Projected traffic874 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Y over Seven Mile Creek built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 1976.

What condition is Cth Y over Seven Mile Creek 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 October 2023.

How much traffic does Cth Y over Seven Mile Creek carry?

About 795 vehicles per day (2022 count).

How long is Cth Y over Seven Mile Creek?

The structure is 33 ft (10.1 m) long with a longest span of 32 ft (9.7 m) and a deck 36 ft wide.

Who owns Cth Y over Seven Mile Creek?

It is owned by the County Highway Agency.