US Bridges

Cth Bb over Crawfish River

Fair

Dodge County, Wisconsin · 1.5M N JCT Sth 19 · Structure no. P14013800000000

Built
1975
50 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
236 ft
3 main spans
Daily traffic
485
2022 count
Owner
County
County Highway Agency

About this bridge

Cth Bb over Crawfish River is a prestressed concrete stringer/multi-beam or girder carrying Cth Bb over Crawfish River in Dodge County, Wisconsin. It was built in 1975, so it is 50 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 485 vehicles a day, projected to reach 533 by 2043. The structure is 236 ft (71.9 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCth Bb
CrossesCrawfish River
Location1.5M N JCT Sth 19
RouteCounty Highway 0BB
CountyDodge County
StateWisconsin
Coordinates43.22659, -88.9206
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating88.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length236 ft (71.9 m)
Longest span78 ft (23.8 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic485 (2022)
Projected traffic533 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Bb over Crawfish River built?

It was built in 1975, making it 50 years old in 2025.

What condition is Cth Bb over Crawfish 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 April 2024.

How much traffic does Cth Bb over Crawfish River carry?

About 485 vehicles per day (2022 count).

How long is Cth Bb over Crawfish River?

The structure is 236 ft (71.9 m) long with a longest span of 78 ft (23.8 m) and a deck 36 ft wide.

Who owns Cth Bb over Crawfish River?

It is owned by the County Highway Agency.