US Bridges

IH I-39 NB/90 WB over Ush 12/18 EB

Good

Dane County, Wisconsin · T. of Blooming Grove · Structure no. B13072900000000

Built
2021
4 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
148 ft
1 main span
Daily traffic
60,400
2022 count
Owner
State
State Highway Agency

About this bridge

IH I-39 NB/90 WB over Ush 12/18 EB is a prestressed concrete stringer/multi-beam or girder carrying IH I-39 NB/90 WB over Ush 12/18 EB in Dane County, Wisconsin. It was built in 2021, so it is 4 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 60,400 vehicles a day, projected to reach 72,000 by 2040. The structure is 148 ft (45 m) long and 63 ft wide.

Location

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CarriesIH I-39 NB/90 WB
CrossesUsh 12/18 EB
LocationT. of Blooming Grove
RouteInterstate 39
CountyDane County
StateWisconsin
Coordinates43.04574, -89.27756
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length148 ft (45 m)
Longest span143 ft (43.6 m)
Deck width63 ft (19.1 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60,400 (2022)
Projected traffic72,000 by 2040
Trucks0%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$921,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH I-39 NB/90 WB over Ush 12/18 EB built?

It was built in 2021, making it 4 years old in 2025.

What condition is IH I-39 NB/90 WB over Ush 12/18 EB 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 May 2023.

How much traffic does IH I-39 NB/90 WB over Ush 12/18 EB carry?

About 60,400 vehicles per day (2022 count).

How long is IH I-39 NB/90 WB over Ush 12/18 EB?

The structure is 148 ft (45 m) long with a longest span of 143 ft (43.6 m) and a deck 63 ft wide.

Who owns IH I-39 NB/90 WB over Ush 12/18 EB?

It is owned by the State Highway Agency.