US Bridges

I 90 over Int West Livingston

Fair

Park County, Montana · 1.9M W Livingston · Structure no. I00090330+09912

Built
1962
63 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
114 ft
3 main spans
Daily traffic
9,461
2023 count
Owner
State
State Highway Agency

About this bridge

I 90 over Int West Livingston is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Int West Livingston in Park County, Montana. It was built in 1962, so it is 63 years old, older 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 9,461 vehicles a day, roughly 16% of them trucks, projected to reach 10,312 by 2043. The structure is 114 ft (34.7 m) long and 41 ft wide.

Location

Open in Google Maps
CarriesI 90
CrossesInt West Livingston
Location1.9M W Livingston
RouteInterstate 90
CountyPark County
StateMontana
Coordinates45.65136, -110.61212
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 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 rating58 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span40 ft (12.2 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,461 (2023)
Projected traffic10,312 by 2043
Trucks16%
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 West Livingston built?

It was built in 1962, making it 63 years old in 2025.

What condition is I 90 over Int West Livingston 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 November 2024.

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

About 9,461 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is I 90 over Int West Livingston?

The structure is 114 ft (34.7 m) long with a longest span of 40 ft (12.2 m) and a deck 41 ft wide.

Who owns I 90 over Int West Livingston?

It is owned by the State Highway Agency.