US Bridges

I 90 over Quinn Creek Road

Good

Park County, Montana · 11.2M W Livingston · Structure no. 000000202201611

Built
2022
3 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
114 ft
1 main span
Daily traffic
8,272
2023 count
Owner
State
State Highway Agency

About this bridge

I 90 over Quinn Creek Road is a steel stringer/multi-beam or girder carrying I 90 over Quinn Creek Road in Park County, Montana. It was built in 2022, so it is 3 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,272 vehicles a day, roughly 16% of them trucks, projected to reach 9,016 by 2043. The structure is 114 ft (34.7 m) long and 40 ft wide.

Location

Open in Google Maps
CarriesI 90
CrossesQuinn Creek Road
Location11.2M W Livingston
RouteInterstate 90
CountyPark County
StateMontana
Coordinates45.66208, -110.79265
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 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 alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length114 ft (34.7 m)
Longest span110 ft (33.5 m)
Deck width40 ft (12.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,272 (2023)
Projected traffic9,016 by 2043
Trucks16%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 90 over Quinn Creek Road built?

It was built in 2022, making it 3 years old in 2025.

What condition is I 90 over Quinn Creek Road in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does I 90 over Quinn Creek Road carry?

About 8,272 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is I 90 over Quinn Creek Road?

The structure is 114 ft (34.7 m) long with a longest span of 110 ft (33.5 m) and a deck 40 ft wide.

Who owns I 90 over Quinn Creek Road?

It is owned by the State Highway Agency.