US Bridges

I 90 over Blue Creek Bay West Gs

Fair

Kootenai County, Idaho · 6.0E. 4.0S. Couer Dalene · Structure no. 000000000016901

Built
1992
33 years old
Condition
Fair
inspected September 2022
Type
Stringer/Multi-beam or Girder
Concrete
Length
134 ft
1 main span
Daily traffic
18,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 90 over Blue Creek Bay West Gs is a concrete stringer/multi-beam or girder carrying I 90 over Blue Creek Bay West Gs in Kootenai County, Idaho. It was built in 1992, so it is 33 years old, younger 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 18,500 vehicles a day, roughly 22% of them trucks, projected to reach 27,750 by 2042. The structure is 134 ft (40.8 m) long and 84 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesI 90
CrossesBlue Creek Bay West Gs
Location6.0E. 4.0S. Couer Dalene
RouteInterstate 90
CountyKootenai County
StateIdaho
Coordinates47.63022, -116.68647
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating59 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length134 ft (40.8 m)
Longest span134 ft (40.8 m)
Deck width84 ft (25.5 m)
Roadway width79 ft (24 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,500 (2023)
Projected traffic27,750 by 2042
Trucks22%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed98.8 mi (159 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$3.3 million (2018 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 90 over Blue Creek Bay West Gs built?

It was built in 1992, making it 33 years old in 2025.

What condition is I 90 over Blue Creek Bay West Gs 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 September 2022.

How much traffic does I 90 over Blue Creek Bay West Gs carry?

About 18,500 vehicles per day (2023 count), of which roughly 22% are trucks.

How long is I 90 over Blue Creek Bay West Gs?

The structure is 134 ft (40.8 m) long with a longest span of 134 ft (40.8 m) and a deck 84 ft wide.

Who owns I 90 over Blue Creek Bay West Gs?

It is owned by the State Highway Agency.