US Bridges

Yellowstone Trail over I90;YELLOWSTONE Trail Gs

Fair

Kootenai County, Idaho · 2.5S. 2.5E. Coeur Dalene · Structure no. 000000000016898

Built
1991
34 years old
Condition
Fair
inspected March 2021
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
270 ft
2 main spans
Daily traffic
350
2023 count
Owner
State
State Highway Agency

About this bridge

Yellowstone Trail over I90;YELLOWSTONE Trail Gs is a prestressed concrete continuous box beam or girders - single or spread carrying Yellowstone Trail over I90;YELLOWSTONE Trail Gs in Kootenai County, Idaho. It was built in 1991, so it is 34 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 350 vehicles a day, roughly 14% of them trucks, projected to reach 525 by 2042. The structure is 270 ft (82.3 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesYellowstone Trail
CrossesI90;YELLOWSTONE Trail Gs
Location2.5S. 2.5E. Coeur Dalene
RouteCounty Highway 0
CountyKootenai County
StateIdaho
Coordinates47.63214, -116.70594
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating44 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length270 ft (82.3 m)
Longest span150 ft (45.7 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2023)
Projected traffic525 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Yellowstone Trail over I90;YELLOWSTONE Trail Gs built?

It was built in 1991, making it 34 years old in 2025.

What condition is Yellowstone Trail over I90;YELLOWSTONE Trail 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 March 2021.

How much traffic does Yellowstone Trail over I90;YELLOWSTONE Trail Gs carry?

About 350 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is Yellowstone Trail over I90;YELLOWSTONE Trail Gs?

The structure is 270 ft (82.3 m) long with a longest span of 150 ft (45.7 m) and a deck 34 ft wide.

Who owns Yellowstone Trail over I90;YELLOWSTONE Trail Gs?

It is owned by the State Highway Agency.