US Bridges

I 90 over Int Jens

Fair

Powell County, Montana · 8M E Drummond · Structure no. I00090162+02782

Built
1959
66 years old, rebuilt 2003
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
114 ft
3 main spans
Daily traffic
5,992
2023 count
Owner
State
State Highway Agency

About this bridge

I 90 over Int Jens is a prestressed concrete stringer/multi-beam or girder carrying I 90 over Int Jens in Powell County, Montana. It was built in 1959 and reconstructed in 2003, so it is 66 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 5,992 vehicles a day, roughly 18% of them trucks, projected to reach 6,381 by 2043. The structure is 114 ft (34.7 m) long and 39 ft wide.

CarriesI 90
CrossesInt Jens
Location8M E Drummond
RouteInterstate 90
StateMontana
Coordinates46.60593, -113.00697
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.
Substructure7 GoodSome minor problems.
Last inspectionMay 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 rating48.9 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span41 ft (12.5 m)
Deck width39 ft (12 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,992 (2023)
Projected traffic6,381 by 2043
Trucks18%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 90 over Int Jens built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2003.

What condition is I 90 over Int Jens 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 May 2024.

How much traffic does I 90 over Int Jens carry?

About 5,992 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I 90 over Int Jens?

The structure is 114 ft (34.7 m) long with a longest span of 41 ft (12.5 m) and a deck 39 ft wide.

Who owns I 90 over Int Jens?

It is owned by the State Highway Agency.