US Bridges

Cth M over Moose River

Poor

Douglas County, Wisconsin · 6.9M W JCT Ush 53 · Structure no. P16005900000000

Built
1934
91 years old, rebuilt 2012
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
77 ft
2 main spans
Daily traffic
325
2023 count
Owner
County
County Highway Agency

About this bridge

Cth M over Moose River is a steel stringer/multi-beam or girder carrying Cth M over Moose River in Douglas County, Wisconsin. It was built in 1934 and reconstructed in 2012, so it is 91 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.

It carries about 325 vehicles a day, projected to reach 319 by 2043. The structure is 77 ft (23.5 m) long and 27 ft wide. If it were closed, the detour would be 17.4 mi (28 km).

Location

Open in Google Maps
CarriesCth M
CrossesMoose River
Location6.9M W JCT Ush 53
RouteCounty Highway 0M
CountyDouglas County
StateWisconsin
Coordinates46.28742, -91.95322
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
Deck7 GoodSome minor problems.
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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length77 ft (23.5 m)
Longest span37 ft (11.4 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic325 (2023)
Projected traffic319 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed17.4 mi (28 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$397,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth M over Moose River built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 2012.

What condition is Cth M over Moose 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 August 2024.

How much traffic does Cth M over Moose River carry?

About 325 vehicles per day (2023 count).

How long is Cth M over Moose River?

The structure is 77 ft (23.5 m) long with a longest span of 37 ft (11.4 m) and a deck 27 ft wide.

Who owns Cth M over Moose River?

It is owned by the County Highway Agency.