US Bridges

Cth H over Prairie River

PoorPosted for load

Langlade County, Wisconsin · 1.4M S JCT Cth Q · Structure no. B34000600000000

Built
1963
62 years old
Condition
Poor
inspected October 2024
Type
Slab
Concrete Continuous
Length
74 ft
2 main spans
Daily traffic
248
2024 count
Owner
County
County Highway Agency

About this bridge

Cth H over Prairie River is a concrete continuous slab carrying Cth H over Prairie River in Langlade County, Wisconsin. It was built in 1963, so it is 62 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 248 vehicles a day, projected to reach 259 by 2043. The structure is 74 ft (22.5 m) long and 32 ft wide. If it were closed, the detour would be 15.5 mi (25 km).

Location

Open in Google Maps
CarriesCth H
CrossesPrairie River
Location1.4M S JCT Cth Q
RouteCounty Highway 0H
CountyLanglade County
StateWisconsin
Coordinates45.41786, -89.40219
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be 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 rating36.4 US tons
Inventory rating19.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length74 ft (22.5 m)
Longest span36 ft (11 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic248 (2024)
Projected traffic259 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed15.5 mi (25 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$383,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth H over Prairie River built?

It was built in 1963, making it 62 years old in 2025.

What condition is Cth H over Prairie River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Cth H over Prairie River carry?

About 248 vehicles per day (2024 count).

How long is Cth H over Prairie River?

The structure is 74 ft (22.5 m) long with a longest span of 36 ft (11 m) and a deck 32 ft wide.

Who owns Cth H over Prairie River?

It is owned by the County Highway Agency.