US Bridges

IH Ush 51-IH 39 NB over Sth 73

Fair

Waushara County, Wisconsin · 5.8M N JCT Cth V to E · Structure no. B69002200000000

Built
1984
41 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
176 ft
2 main spans
Daily traffic
12,800
2021 count
Owner
State
State Highway Agency

About this bridge

IH Ush 51-IH 39 NB over Sth 73 is a prestressed concrete continuous stringer/multi-beam or girder carrying IH Ush 51-IH 39 NB over Sth 73 in Waushara County, Wisconsin. It was built in 1984, so it is 41 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 12,800 vehicles a day, roughly 18% of them trucks, projected to reach 15,360 by 2041. The structure is 176 ft (53.6 m) long and 43 ft wide.

Location

Open in Google Maps
CarriesIH Ush 51-IH 39 NB
CrossesSth 73
Location5.8M N JCT Cth V to E
RouteInterstate 39
CountyWaushara County
StateWisconsin
Coordinates44.21358, -89.52432
Functional classRural Principal Arterial - Interstate

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.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length176 ft (53.6 m)
Longest span87 ft (26.5 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,800 (2021)
Projected traffic15,360 by 2041
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 IH Ush 51-IH 39 NB over Sth 73 built?

It was built in 1984, making it 41 years old in 2025.

What condition is IH Ush 51-IH 39 NB over Sth 73 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 May 2024.

How much traffic does IH Ush 51-IH 39 NB over Sth 73 carry?

About 12,800 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is IH Ush 51-IH 39 NB over Sth 73?

The structure is 176 ft (53.6 m) long with a longest span of 87 ft (26.5 m) and a deck 43 ft wide.

Who owns IH Ush 51-IH 39 NB over Sth 73?

It is owned by the State Highway Agency.