US Bridges

I 90 Wbl over SH 41;SH 41 Ic

Fair

Kootenai County, Idaho · 1.7 E. Post Falls · Structure no. 000000000016790

Built
1971
54 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
130 ft
3 main spans
Daily traffic
32,250
2023 count
Owner
State
State Highway Agency

About this bridge

I 90 Wbl over SH 41;SH 41 Ic is a prestressed concrete stringer/multi-beam or girder carrying I 90 Wbl over SH 41;SH 41 Ic in Kootenai County, Idaho. It was built in 1971, so it is 54 years old, older than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 32,250 vehicles a day, roughly 9% of them trucks, projected to reach 48,375 by 2042. The structure is 130 ft (39.6 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 90 Wbl
CrossesSH 41;SH 41 Ic
Location1.7 E. Post Falls
RouteInterstate 90
CountyKootenai County
StateIdaho
Coordinates47.7105, -116.89489
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span48 ft (14.6 m)
Deck width46 ft (14.1 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,250 (2023)
Projected traffic48,375 by 2042
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 90 Wbl over SH 41;SH 41 Ic built?

It was built in 1971, making it 54 years old in 2025.

What condition is I 90 Wbl over SH 41;SH 41 Ic in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does I 90 Wbl over SH 41;SH 41 Ic carry?

About 32,250 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I 90 Wbl over SH 41;SH 41 Ic?

The structure is 130 ft (39.6 m) long with a longest span of 48 ft (14.6 m) and a deck 46 ft wide.

Who owns I 90 Wbl over SH 41;SH 41 Ic?

It is owned by the State Highway Agency.