US Bridges

IH 90 EB over Cnw RR

Good

Dane County, Wisconsin · 3.0M E JCT IH 94 to E · Structure no. B13045800000000

Built
1997
28 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
135 ft
3 main spans
Daily traffic
48,700
2022 count
Owner
State
State Highway Agency

About this bridge

IH 90 EB over Cnw RR is a steel continuous stringer/multi-beam or girder carrying IH 90 EB over Cnw RR in Dane County, Wisconsin. It was built in 1997, so it is 28 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 48,700 vehicles a day, roughly 11% of them trucks, projected to reach 58,440 by 2042. The structure is 135 ft (41.1 m) long and 64 ft wide.

CarriesIH 90 EB
CrossesCnw RR
Location3.0M E JCT IH 94 to E
RouteInterstate 90
Coordinates43.06627, -89.27813
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 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 rating86.4 US tons
Inventory rating51.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41.1 m)
Longest span50 ft (15.2 m)
Deck width64 ft (19.6 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,700 (2022)
Projected traffic58,440 by 2042
Trucks11%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 90 EB over Cnw RR built?

It was built in 1997, making it 28 years old in 2025.

What condition is IH 90 EB over Cnw RR 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 July 2024.

How much traffic does IH 90 EB over Cnw RR carry?

About 48,700 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is IH 90 EB over Cnw RR?

The structure is 135 ft (41.1 m) long with a longest span of 50 ft (15.2 m) and a deck 64 ft wide.

Who owns IH 90 EB over Cnw RR?

It is owned by the State Highway Agency.