US Bridges

Cth D over IH Ush 51-IH 39

FairPosted for load

Marquette County, Wisconsin · 2.9M N JCT Cth Cx · Structure no. B39001100000000

Built
1966
59 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
206 ft
2 main spans
Daily traffic
1,200
2021 count
Owner
State
State Highway Agency

About this bridge

Cth D over IH Ush 51-IH 39 is a steel continuous stringer/multi-beam or girder carrying Cth D over IH Ush 51-IH 39 in Marquette County, Wisconsin. It was built in 1966, so it is 59 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 1,200 vehicles a day, projected to reach 1,200 by 2043. The structure is 206 ft (62.7 m) long and 35 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCth D
CrossesIH Ush 51-IH 39
Location2.9M N JCT Cth Cx
RouteCounty Highway 0D
CountyMarquette County
StateWisconsin
Coordinates43.75949, -89.48459
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
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
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.2 US tons
Inventory rating19.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length206 ft (62.7 m)
Longest span100 ft (30.5 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2021)
Projected traffic1,200 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cth D over IH Ush 51-IH 39 built?

It was built in 1966, making it 59 years old in 2025.

What condition is Cth D over IH Ush 51-IH 39 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 April 2024.

How much traffic does Cth D over IH Ush 51-IH 39 carry?

About 1,200 vehicles per day (2021 count).

How long is Cth D over IH Ush 51-IH 39?

The structure is 206 ft (62.7 m) long with a longest span of 100 ft (30.5 m) and a deck 35 ft wide.

Who owns Cth D over IH Ush 51-IH 39?

It is owned by the State Highway Agency.