US Bridges

Cth N over IH 90-IH 94

Fair

Juneau County, Wisconsin · 4.8M W JCT Ush 12 · Structure no. B29002500000000

Built
1964
61 years old, rebuilt 2008
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
237 ft
4 main spans
Daily traffic
290
2022 count
Owner
State
State Highway Agency

About this bridge

Cth N over IH 90-IH 94 is a steel continuous stringer/multi-beam or girder carrying Cth N over IH 90-IH 94 in Juneau County, Wisconsin. It was built in 1964 and reconstructed in 2008, so it is 61 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 6 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 290 vehicles a day, projected to reach 280 by 2042. The structure is 237 ft (72.2 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCth N
CrossesIH 90-IH 94
Location4.8M W JCT Ush 12
RouteCounty Highway 0N
CountyJuneau County
StateWisconsin
Coordinates43.76234, -89.97511
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating21.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length237 ft (72.2 m)
Longest span74 ft (22.6 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic290 (2022)
Projected traffic280 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cth N over IH 90-IH 94 built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2008.

What condition is Cth N over IH 90-IH 94 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 2023.

How much traffic does Cth N over IH 90-IH 94 carry?

About 290 vehicles per day (2022 count).

How long is Cth N over IH 90-IH 94?

The structure is 237 ft (72.2 m) long with a longest span of 74 ft (22.6 m) and a deck 30 ft wide.

Who owns Cth N over IH 90-IH 94?

It is owned by the State Highway Agency.