US Bridges

Sth 172 over STH57-RIVERSIDE Dr-Fox R

Fair

Brown County, Wisconsin · 1.7M E JCT Ush 41 · Structure no. B05014900000000

Built
1975
50 years old, rebuilt 2010
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
3,225 ft
18 main spans
Daily traffic
84,700
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 172 over STH57-RIVERSIDE Dr-Fox R is a steel continuous stringer/multi-beam or girder carrying Sth 172 over STH57-RIVERSIDE Dr-Fox R in Brown County, Wisconsin. It was built in 1975 and reconstructed in 2010, so it is 50 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 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 84,700 vehicles a day, roughly 1% of them trucks, projected to reach 53,000 by 2042. The structure is 3,225 ft (983 m) long and 102 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSth 172
CrossesSTH57-RIVERSIDE Dr-Fox R
Location1.7M E JCT Ush 41
RouteState Highway 172
CountyBrown County
StateWisconsin
Coordinates44.47625, -88.04984
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans18
Design loadHS 20
Structure length3,225 ft (983 m)
Longest span220 ft (67.1 m)
Deck width102 ft (31.2 m)
Roadway width94 ft (28.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic84,700 (2021)
Projected traffic53,000 by 2042
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway, waterway and railroad
Detour if closed2.5 mi (4 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Sth 172 over STH57-RIVERSIDE Dr-Fox R built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2010.

What condition is Sth 172 over STH57-RIVERSIDE Dr-Fox R 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 172 over STH57-RIVERSIDE Dr-Fox R carry?

About 84,700 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Sth 172 over STH57-RIVERSIDE Dr-Fox R?

The structure is 3,225 ft (983 m) long with a longest span of 220 ft (67.1 m) and a deck 102 ft wide.

Who owns Sth 172 over STH57-RIVERSIDE Dr-Fox R?

It is owned by the State Highway Agency.