US Bridges

Cth P over Ashippun River

Good

Dodge County, Wisconsin · 1.3M N JCT Cth O · Structure no. B14014200000000

Built
1999
26 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
2,800
2021 count
Owner
County
County Highway Agency

About this bridge

Cth P over Ashippun River is a concrete continuous culvert carrying Cth P over Ashippun River in Dodge County, Wisconsin. It was built in 1999, so it is 26 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,800 vehicles a day, projected to reach 3,360 by 2041. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 11.8 mi (19 km).

CarriesCth P
CrossesAshippun River
Location1.3M N JCT Cth O
RouteCounty Highway 0P
Coordinates43.23618, -88.45822
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.3 m)
Longest span9 ft (2.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2021)
Projected traffic3,360 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 P over Ashippun River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Cth P over Ashippun River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does Cth P over Ashippun River carry?

About 2,800 vehicles per day (2021 count).

How long is Cth P over Ashippun River?

The structure is 21 ft (6.3 m) long with a longest span of 9 ft (2.6 m).

Who owns Cth P over Ashippun River?

It is owned by the County Highway Agency.