US Bridges

Sth 66 over Plover River

Fair

Portage County, Wisconsin · 0.2M E JCT Cth Y · Structure no. B49007400000000

Built
1985
40 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
3,400
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 66 over Plover River is a concrete slab carrying Sth 66 over Plover River in Portage County, Wisconsin. It was built in 1985, so it is 40 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 3,400 vehicles a day, roughly 6% of them trucks, projected to reach 5,330 by 2042. The structure is 25 ft (7.7 m) long and 52 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

Location

Open in Google Maps
CarriesSth 66
CrossesPlover River
Location0.2M E JCT Cth Y
RouteState Highway 66
CountyPortage County
StateWisconsin
Coordinates44.57624, -89.50054
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
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 evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.7 m)
Longest span25 ft (7.6 m)
Deck width52 ft (15.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,400 (2021)
Projected traffic5,330 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed18.6 mi (30 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 66 over Plover River built?

It was built in 1985, making it 40 years old in 2025.

What condition is Sth 66 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 over Plover River carry?

About 3,400 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Sth 66 over Plover River?

The structure is 25 ft (7.7 m) long with a longest span of 25 ft (7.6 m) and a deck 52 ft wide.

Who owns Sth 66 over Plover River?

It is owned by the State Highway Agency.