US Bridges

IH 41/USH 45 SB over Bonniwell Creek

Good

Washington County, Wisconsin · 0.7 MI S JCT Sth 145 · Structure no. B66019500000000

Built
2015
10 years old
Condition
Good
inspected September 2021
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
31,550
2022 count
Owner
State
State Highway Agency

About this bridge

IH 41/USH 45 SB over Bonniwell Creek is a concrete culvert carrying IH 41/USH 45 SB over Bonniwell Creek in Washington County, Wisconsin. It was built in 2015, so it is 10 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 31,550 vehicles a day, projected to reach 51,240 by 2039. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIH 41/USH 45 SB
CrossesBonniwell Creek
Location0.7 MI S JCT Sth 145
RouteInterstate 41
CountyWashington County
StateWisconsin
Coordinates43.26711, -88.18302
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2021
Inspection intervalevery 44 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length22 ft (6.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31,550 (2022)
Projected traffic51,240 by 2039
Trucks0%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 41/USH 45 SB over Bonniwell Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is IH 41/USH 45 SB over Bonniwell Creek 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 September 2021.

How much traffic does IH 41/USH 45 SB over Bonniwell Creek carry?

About 31,550 vehicles per day (2022 count).

How long is IH 41/USH 45 SB over Bonniwell Creek?

The structure is 22 ft (6.8 m) long with a longest span of 10 ft (3 m).

Who owns IH 41/USH 45 SB over Bonniwell Creek?

It is owned by the State Highway Agency.