US Bridges

Sth 28 over Wisconsin Central

Fair

Dodge County, Wisconsin · 0.7M E JCT Sth 175 to N · Structure no. B14017600000000

Built
2003
22 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
303 ft
3 main spans
Daily traffic
3,200
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 28 over Wisconsin Central is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 28 over Wisconsin Central in Dodge County, Wisconsin. It was built in 2003, so it is 22 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 3,200 vehicles a day, roughly 10% of them trucks, projected to reach 4,000 by 2042. The structure is 303 ft (92.4 m) long and 43 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesSth 28
CrossesWisconsin Central
Location0.7M E JCT Sth 175 to N
RouteState Highway 28
CountyDodge County
StateWisconsin
Coordinates43.53667, -88.43333
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71.7 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length303 ft (92.4 m)
Longest span116 ft (35.4 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2022)
Projected traffic4,000 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth 28 over Wisconsin Central built?

It was built in 2003, making it 22 years old in 2025.

What condition is Sth 28 over Wisconsin Central 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 October 2023.

How much traffic does Sth 28 over Wisconsin Central carry?

About 3,200 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Sth 28 over Wisconsin Central?

The structure is 303 ft (92.4 m) long with a longest span of 116 ft (35.4 m) and a deck 43 ft wide.

Who owns Sth 28 over Wisconsin Central?

It is owned by the State Highway Agency.