US Bridges

Sth 175|APPLETON a over Cth E|w Silver Spring DR

Fair

Milwaukee County, Wisconsin · 2.2 MI N JCT Sth 181 · Structure no. B40032800000000

Built
1967
58 years old, rebuilt 2014
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
177 ft
2 main spans
Daily traffic
29,100
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 175|APPLETON a over Cth E|w Silver Spring DR is a steel continuous stringer/multi-beam or girder carrying Sth 175|APPLETON a over Cth E|w Silver Spring DR in Milwaukee County, Wisconsin. It was built in 1967 and reconstructed in 2014, so it is 58 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 29,100 vehicles a day, roughly 4% of them trucks, projected to reach 17,100 by 2043. The structure is 177 ft (53.8 m) long and 110 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSth 175|APPLETON a
CrossesCth E|w Silver Spring DR
Location2.2 MI N JCT Sth 181
RouteState Highway 175
CountyMilwaukee County
StateWisconsin
Coordinates43.11945, -88.03446
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.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.7 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length177 ft (53.8 m)
Longest span87 ft (26.5 m)
Deck width110 ft (33.5 m)
Roadway width92 ft (28 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,100 (2022)
Projected traffic17,100 by 2043
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sth 175|APPLETON a over Cth E|w Silver Spring DR built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2014.

What condition is Sth 175|APPLETON a over Cth E|w Silver Spring DR 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 175|APPLETON a over Cth E|w Silver Spring DR carry?

About 29,100 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Sth 175|APPLETON a over Cth E|w Silver Spring DR?

The structure is 177 ft (53.8 m) long with a longest span of 87 ft (26.5 m) and a deck 110 ft wide.

Who owns Sth 175|APPLETON a over Cth E|w Silver Spring DR?

It is owned by the State Highway Agency.