US Bridges

Cth N over Mecan River

Fair

Marquette County, Wisconsin · 1.9M N JCT Sth 23 · Structure no. B39004600000000

Built
1989
36 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
39 ft
1 main span
Daily traffic
156
2024 count
Owner
County
County Highway Agency

About this bridge

Cth N over Mecan River is a concrete slab carrying Cth N over Mecan River in Marquette County, Wisconsin. It was built in 1989, so it is 36 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 156 vehicles a day, projected to reach 125 by 2043. The structure is 39 ft (11.8 m) long and 26 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCth N
CrossesMecan River
Location1.9M N JCT Sth 23
RouteCounty Highway 0N
CountyMarquette County
StateWisconsin
Coordinates43.85428, -89.24196
Functional classRural Minor 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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length39 ft (11.8 m)
Longest span37 ft (11.3 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic156 (2024)
Projected traffic125 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 N over Mecan River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Cth N over Mecan River 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 2024.

How much traffic does Cth N over Mecan River carry?

About 156 vehicles per day (2024 count).

How long is Cth N over Mecan River?

The structure is 39 ft (11.8 m) long with a longest span of 37 ft (11.3 m) and a deck 26 ft wide.

Who owns Cth N over Mecan River?

It is owned by the County Highway Agency.