US Bridges

IH 43 NB over Ush 10 Wb-Sth 310

Fair

Manitowoc County, Wisconsin · At JCT IH 43-USH 10 · Structure no. B36007800000000

Built
1978
47 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
246 ft
2 main spans
Daily traffic
11,100
2023 count
Owner
State
State Highway Agency

About this bridge

IH 43 NB over Ush 10 Wb-Sth 310 is a steel continuous stringer/multi-beam or girder carrying IH 43 NB over Ush 10 Wb-Sth 310 in Manitowoc County, Wisconsin. It was built in 1978, so it is 47 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 11,100 vehicles a day, roughly 22% of them trucks, projected to reach 17,750 by 2042. The structure is 246 ft (75 m) long and 43 ft wide.

CarriesIH 43 NB
CrossesUsh 10 Wb-Sth 310
LocationAt JCT IH 43-USH 10
RouteInterstate 43
Coordinates44.15311, -87.73126
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
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 rating64.8 US tons
Inventory rating37.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length246 ft (75 m)
Longest span123 ft (37.5 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,100 (2023)
Projected traffic17,750 by 2042
Trucks22%
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 43 NB over Ush 10 Wb-Sth 310 built?

It was built in 1978, making it 47 years old in 2025.

What condition is IH 43 NB over Ush 10 Wb-Sth 310 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 IH 43 NB over Ush 10 Wb-Sth 310 carry?

About 11,100 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is IH 43 NB over Ush 10 Wb-Sth 310?

The structure is 246 ft (75 m) long with a longest span of 123 ft (37.5 m) and a deck 43 ft wide.

Who owns IH 43 NB over Ush 10 Wb-Sth 310?

It is owned by the State Highway Agency.