US Bridges

I 90 over Orea Creek Road

Fair

Park County, Montana · 5M W Livingston · Structure no. I00090328+00291

Built
1977
48 years old, rebuilt 2008
Condition
Fair
inspected December 2024
Type
Slab
Concrete Continuous
Length
78 ft
3 main spans
Daily traffic
8,236
2023 count
Owner
State
State Highway Agency

About this bridge

I 90 over Orea Creek Road is a concrete continuous slab carrying I 90 over Orea Creek Road in Park County, Montana. It was built in 1977 and reconstructed in 2008, so it is 48 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 8,236 vehicles a day, roughly 16% of them trucks, projected to reach 8,976 by 2043. The structure is 78 ft (23.8 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 90
CrossesOrea Creek Road
Location5M W Livingston
RouteInterstate 90
CountyPark County
StateMontana
Coordinates45.65974, -110.67062
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span30 ft (9.1 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,236 (2023)
Projected traffic8,976 by 2043
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
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 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 Orea Creek Road built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 2008.

What condition is I 90 over Orea Creek Road 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 Orea Creek Road carry?

About 8,236 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is I 90 over Orea Creek Road?

The structure is 78 ft (23.8 m) long with a longest span of 30 ft (9.1 m) and a deck 44 ft wide.

Who owns I 90 over Orea Creek Road?

It is owned by the State Highway Agency.