US Bridges

Cth M over Trib Mill Creek

Fair

Portage County, Wisconsin · 1.43 MI W. JCT Cty Hh · Structure no. B49016800000000

Built
2008
17 years old
Condition
Fair
inspected August 2023
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
516
2023 count
Owner
County
County Highway Agency

About this bridge

Cth M over Trib Mill Creek is a steel culvert carrying Cth M over Trib Mill Creek in Portage County, Wisconsin. It was built in 2008, so it is 17 years old, younger 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 516 vehicles a day, projected to reach 551 by 2042. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCth M
CrossesTrib Mill Creek
Location1.43 MI W. JCT Cty Hh
RouteCounty Highway 0M
CountyPortage County
StateWisconsin
Coordinates44.54039, -89.66556
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum 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
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic516 (2023)
Projected traffic551 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 M over Trib Mill Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is Cth M over Trib Mill Creek 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 August 2023.

How much traffic does Cth M over Trib Mill Creek carry?

About 516 vehicles per day (2023 count).

How long is Cth M over Trib Mill Creek?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns Cth M over Trib Mill Creek?

It is owned by the County Highway Agency.