US Bridges

Cth M over Drainage Creek

Poor

Barron County, Wisconsin · 4.7M N JCT Cth D · Structure no. P03015200000000

Built
1985
40 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
920
2021 count
Owner
County
County Highway Agency

About this bridge

Cth M over Drainage Creek is a steel stringer/multi-beam or girder carrying Cth M over Drainage Creek in Barron County, Wisconsin. It was built in 1985, so it is 40 years old, younger 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 920 vehicles a day, projected to reach 594 by 2043. The structure is 25 ft (7.6 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesCth M
CrossesDrainage Creek
Location4.7M N JCT Cth D
RouteCounty Highway 0M
CountyBarron County
StateWisconsin
Coordinates45.38142, -91.65043
Functional classRural Major 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.6 US tons
Inventory rating55.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width33 ft (10.2 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic920 (2021)
Projected traffic594 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$193,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth M over Drainage Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Cth M over Drainage Creek 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 June 2024.

How much traffic does Cth M over Drainage Creek carry?

About 920 vehicles per day (2021 count).

How long is Cth M over Drainage Creek?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 33 ft wide.

Who owns Cth M over Drainage Creek?

It is owned by the County Highway Agency.