US Bridges

Sth 32 over N Br Oconto River

Fair

Forest County, Wisconsin · 0.4M N JCT Sth 52 · Structure no. B21000300000000

Built
1970
55 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
2,400
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 32 over N Br Oconto River is a prestressed concrete stringer/multi-beam or girder carrying Sth 32 over N Br Oconto River in Forest County, Wisconsin. It was built in 1970, so it is 55 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 2,400 vehicles a day, roughly 7% of them trucks, projected to reach 4,270 by 2042. The structure is 53 ft (16.1 m) long and 47 ft wide. If it were closed, the detour would be 58.4 mi (94 km).

CarriesSth 32
CrossesN Br Oconto River
Location0.4M N JCT Sth 52
RouteState Highway 32
Coordinates45.45009, -88.67542
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.
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 inspectionJune 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.2 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length53 ft (16.1 m)
Longest span52 ft (15.8 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2022)
Projected traffic4,270 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed58.4 mi (94 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 32 over N Br Oconto River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Sth 32 over N Br Oconto 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 June 2023.

How much traffic does Sth 32 over N Br Oconto River carry?

About 2,400 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Sth 32 over N Br Oconto River?

The structure is 53 ft (16.1 m) long with a longest span of 52 ft (15.8 m) and a deck 47 ft wide.

Who owns Sth 32 over N Br Oconto River?

It is owned by the State Highway Agency.