US Bridges

I 90 over Int Springdale West

Fair

Park County, Montana · 3.7M W Springdale · Structure no. I00090350+04551

Built
1987
38 years old
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
79 ft
3 main spans
Daily traffic
5,766
2023 count
Owner
State
State Highway Agency

About this bridge

I 90 over Int Springdale West is a concrete continuous slab carrying I 90 over Int Springdale West in Park County, Montana. It was built in 1987, so it is 38 years old, younger than the Montana average of 47 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 5,766 vehicles a day, roughly 19% of them trucks, projected to reach 6,284 by 2043. The structure is 79 ft (24.1 m) long and 39 ft wide.

CarriesI 90
CrossesInt Springdale West
Location3.7M W Springdale
RouteInterstate 90
StateMontana
Coordinates45.70078, -110.26089
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length79 ft (24.1 m)
Longest span30 ft (9.1 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,766 (2023)
Projected traffic6,284 by 2043
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
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 I 90 over Int Springdale West built?

It was built in 1987, making it 38 years old in 2025.

What condition is I 90 over Int Springdale West 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 December 2024.

How much traffic does I 90 over Int Springdale West carry?

About 5,766 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is I 90 over Int Springdale West?

The structure is 79 ft (24.1 m) long with a longest span of 30 ft (9.1 m) and a deck 39 ft wide.

Who owns I 90 over Int Springdale West?

It is owned by the State Highway Agency.