US Bridges

IH Ramp I43 Nb-Sil over Lrd W Silver Spring DR

Good

Milwaukee County, Wisconsin · 2.1 MI N JCT Sth 190 · Structure no. B40058600000000

Built
1992
33 years old, rebuilt 2006
Condition
Good
inspected March 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
132 ft
1 main span
Daily traffic
7,500
2022 count
Owner
State
State Highway Agency

About this bridge

IH Ramp I43 Nb-Sil over Lrd W Silver Spring DR is a steel stringer/multi-beam or girder carrying IH Ramp I43 Nb-Sil over Lrd W Silver Spring DR in Milwaukee County, Wisconsin. It was built in 1992 and reconstructed in 2006, so it is 33 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,500 vehicles a day, roughly 1% of them trucks, projected to reach 72,325 by 2040. The structure is 132 ft (40.3 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIH Ramp I43 Nb-Sil
CrossesLrd W Silver Spring DR
Location2.1 MI N JCT Sth 190
RouteInterstate 0
Coordinates43.11849, -87.91804
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating39.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length132 ft (40.3 m)
Longest span128 ft (39 m)
Deck width39 ft (12 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,500 (2022)
Projected traffic72,325 by 2040
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 IH Ramp I43 Nb-Sil over Lrd W Silver Spring DR built?

It was built in 1992, making it 33 years old in 2025. It was reconstructed in 2006.

What condition is IH Ramp I43 Nb-Sil over Lrd W Silver Spring DR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2021.

How much traffic does IH Ramp I43 Nb-Sil over Lrd W Silver Spring DR carry?

About 7,500 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is IH Ramp I43 Nb-Sil over Lrd W Silver Spring DR?

The structure is 132 ft (40.3 m) long with a longest span of 128 ft (39 m) and a deck 39 ft wide.

Who owns IH Ramp I43 Nb-Sil over Lrd W Silver Spring DR?

It is owned by the State Highway Agency.