US Bridges

Sth 29 - Walnut ST over Fox River

Fair

Brown County, Wisconsin · 3.2M E JCT Ush 41 to N · Structure no. B05026900010000

Built
1986
39 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
299 ft
3 main spans
Daily traffic
11,100
2023 count
Owner
State
State Highway Agency

About this bridge

Sth 29 - Walnut ST over Fox River is a steel continuous stringer/multi-beam or girder carrying Sth 29 - Walnut ST over Fox River in Brown County, Wisconsin. It was built in 1986, so it is 39 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 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 11,100 vehicles a day, roughly 3% of them trucks, projected to reach 16,990 by 2043. The structure is 299 ft (91.2 m) long and 72 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSth 29 - Walnut ST
CrossesFox River
Location3.2M E JCT Ush 41 to N
RouteState Highway 29
CountyBrown County
StateWisconsin
Coordinates44.515, -88.01833
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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 rating52.2 US tons
Inventory rating37.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length299 ft (91.2 m)
Longest span105 ft (32 m)
Deck width72 ft (21.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,100 (2023)
Projected traffic16,990 by 2043
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed9.9 mi (16 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 29 - Walnut ST over Fox River built?

It was built in 1986, making it 39 years old in 2025.

What condition is Sth 29 - Walnut ST over Fox 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 April 2024.

How much traffic does Sth 29 - Walnut ST over Fox River carry?

About 11,100 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Sth 29 - Walnut ST over Fox River?

The structure is 299 ft (91.2 m) long with a longest span of 105 ft (32 m) and a deck 72 ft wide.

Who owns Sth 29 - Walnut ST over Fox River?

It is owned by the State Highway Agency.