US Bridges

Cth D over Buffalo Lake

Fair

Marquette County, Wisconsin · 0.2M S JCT Cth C · Structure no. B39001400000000

Built
1975
50 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
137 ft
3 main spans
Daily traffic
1,003
2024 count
Owner
County
County Highway Agency

About this bridge

Cth D over Buffalo Lake is a concrete continuous slab carrying Cth D over Buffalo Lake in Marquette County, Wisconsin. It was built in 1975, so it is 50 years old, older 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 1,003 vehicles a day, projected to reach 1,200 by 2041. The structure is 137 ft (41.8 m) long and 38 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

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CarriesCth D
CrossesBuffalo Lake
Location0.2M S JCT Cth C
RouteCounty Highway 0D
CountyMarquette County
StateWisconsin
Coordinates43.76201, -89.45727
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length137 ft (41.8 m)
Longest span55 ft (16.9 m)
Deck width38 ft (11.5 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,003 (2024)
Projected traffic1,200 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 D over Buffalo Lake built?

It was built in 1975, making it 50 years old in 2025.

What condition is Cth D over Buffalo Lake 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 D over Buffalo Lake carry?

About 1,003 vehicles per day (2024 count).

How long is Cth D over Buffalo Lake?

The structure is 137 ft (41.8 m) long with a longest span of 55 ft (16.9 m) and a deck 38 ft wide.

Who owns Cth D over Buffalo Lake?

It is owned by the County Highway Agency.