US Bridges

Cth I over Crawfish River

Fair

Dodge County, Wisconsin · 1.3M E JCT Cth T · Structure no. B14001400000000

Built
1953
72 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
187 ft
3 main spans
Daily traffic
410
2021 count
Owner
County
County Highway Agency

About this bridge

Cth I over Crawfish River is a steel continuous stringer/multi-beam or girder carrying Cth I over Crawfish River in Dodge County, Wisconsin. It was built in 1953, so it is 72 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 410 vehicles a day, projected to reach 492 by 2041. The structure is 187 ft (57 m) long and 27 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesCth I
CrossesCrawfish River
Location1.3M E JCT Cth T
RouteCounty Highway 0I
CountyDodge County
StateWisconsin
Coordinates43.25603, -88.93916
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.2 US tons
Inventory rating19.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length187 ft (57 m)
Longest span70 ft (21.3 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2021)
Projected traffic492 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 I over Crawfish River built?

It was built in 1953, making it 72 years old in 2025.

What condition is Cth I 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 I over Crawfish River carry?

About 410 vehicles per day (2021 count).

How long is Cth I over Crawfish River?

The structure is 187 ft (57 m) long with a longest span of 70 ft (21.3 m) and a deck 27 ft wide.

Who owns Cth I over Crawfish River?

It is owned by the County Highway Agency.