US Bridges

IH 43 NB over Cth I (beloit Rd)

Good

Waukesha County, Wisconsin · 3.2 MI N JCT Cth Y · Structure no. B67029600000000

Built
2008
17 years old
Condition
Good
inspected April 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
139 ft
1 main span
Daily traffic
38,450
2022 count
Owner
State
State Highway Agency

About this bridge

IH 43 NB over Cth I (beloit Rd) is a prestressed concrete stringer/multi-beam or girder carrying IH 43 NB over Cth I (beloit Rd) in Waukesha County, Wisconsin. It was built in 2008, so it is 17 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 38,450 vehicles a day, projected to reach 43,700 by 2042. The structure is 139 ft (42.3 m) long and 75 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIH 43 NB
CrossesCth I (beloit Rd)
Location3.2 MI N JCT Cth Y
RouteInterstate 43
CountyWaukesha County
StateWisconsin
Coordinates42.95546, -88.10386
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 inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating60.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length139 ft (42.3 m)
Longest span134 ft (40.8 m)
Deck width75 ft (22.9 m)
Roadway width73 ft (22.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,450 (2022)
Projected traffic43,700 by 2042
Trucks0%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 43 NB over Cth I (beloit Rd) built?

It was built in 2008, making it 17 years old in 2025.

What condition is IH 43 NB over Cth I (beloit Rd) 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 April 2022.

How much traffic does IH 43 NB over Cth I (beloit Rd) carry?

About 38,450 vehicles per day (2022 count).

How long is IH 43 NB over Cth I (beloit Rd)?

The structure is 139 ft (42.3 m) long with a longest span of 134 ft (40.8 m) and a deck 75 ft wide.

Who owns IH 43 NB over Cth I (beloit Rd)?

It is owned by the State Highway Agency.