US Bridges

Sth 66-MAIN St. over Plover River

Fair

Portage County, Wisconsin · 0.4M E JCT Cth Yy · Structure no. B49004100000000

Built
1926
99 years old, rebuilt 1969
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
64 ft
1 main span
Daily traffic
19,200
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 66-MAIN St. over Plover River is a prestressed concrete stringer/multi-beam or girder carrying Sth 66-MAIN St. over Plover River in Portage County, Wisconsin. It was built in 1926 and reconstructed in 1969, so it is 99 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.

It carries about 19,200 vehicles a day, roughly 3% of them trucks, projected to reach 22,800 by 2040. The structure is 64 ft (19.4 m) long and 69 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

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CarriesSth 66-MAIN St.
CrossesPlover River
Location0.4M E JCT Cth Yy
RouteState Highway 66
CountyPortage County
StateWisconsin
Coordinates44.52329, -89.53682
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.6 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length64 ft (19.4 m)
Longest span62 ft (18.8 m)
Deck width69 ft (20.9 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,200 (2022)
Projected traffic22,800 by 2040
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed7.5 mi (12 km)
TollOn a free road
National Highway SystemYes

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 66-MAIN St. over Plover River built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1969.

What condition is Sth 66-MAIN St. over Plover River 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 September 2023.

How much traffic does Sth 66-MAIN St. over Plover River carry?

About 19,200 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Sth 66-MAIN St. over Plover River?

The structure is 64 ft (19.4 m) long with a longest span of 62 ft (18.8 m) and a deck 69 ft wide.

Who owns Sth 66-MAIN St. over Plover River?

It is owned by the State Highway Agency.