US Bridges

IH 39 NB / IH 90 W over Sth 26-MILTON Ave

Good

Rock County, Wisconsin · 0.9M W JCT Ush 14 to E · Structure no. B53034300000000

Built
2020
5 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
177 ft
2 main spans
Daily traffic
29,500
2022 count
Owner
State
State Highway Agency

About this bridge

IH 39 NB / IH 90 W over Sth 26-MILTON Ave is a prestressed concrete continuous stringer/multi-beam or girder carrying IH 39 NB / IH 90 W over Sth 26-MILTON Ave in Rock County, Wisconsin. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 29,500 vehicles a day, roughly 29% of them trucks, projected to reach 46,200 by 2040. The structure is 177 ft (53.8 m) long and 105 ft wide.

Location

Open in Google Maps
CarriesIH 39 NB / IH 90 W
CrossesSth 26-MILTON Ave
Location0.9M W JCT Ush 14 to E
RouteInterstate 39
CountyRock County
StateWisconsin
Coordinates42.72591, -88.9925
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating40.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length177 ft (53.8 m)
Longest span91 ft (27.7 m)
Deck width105 ft (31.9 m)
Roadway width100 ft (30.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,500 (2022)
Projected traffic46,200 by 2040
Trucks29%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 39 NB / IH 90 W over Sth 26-MILTON Ave built?

It was built in 2020, making it 5 years old in 2025.

What condition is IH 39 NB / IH 90 W over Sth 26-MILTON Ave 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 2024.

How much traffic does IH 39 NB / IH 90 W over Sth 26-MILTON Ave carry?

About 29,500 vehicles per day (2022 count), of which roughly 29% are trucks.

How long is IH 39 NB / IH 90 W over Sth 26-MILTON Ave?

The structure is 177 ft (53.8 m) long with a longest span of 91 ft (27.7 m) and a deck 105 ft wide.

Who owns IH 39 NB / IH 90 W over Sth 26-MILTON Ave?

It is owned by the State Highway Agency.