US Bridges

I 94 over Rr-Highline Canal RD

Fair

Yellowstone County, Montana · 1.9M E Ballantine · Structure no. I00094016+05182

Built
1968
57 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
447 ft
2 main spans
Daily traffic
2,611
2023 count
Owner
State
State Highway Agency

About this bridge

I 94 over Rr-Highline Canal RD is a steel continuous stringer/multi-beam or girder carrying I 94 over Rr-Highline Canal RD in Yellowstone County, Montana. It was built in 1968, so it is 57 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 2,611 vehicles a day, roughly 26% of them trucks, projected to reach 2,741 by 2043. The structure is 447 ft (136.2 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 94
CrossesRr-Highline Canal RD
Location1.9M E Ballantine
RouteInterstate 94
CountyYellowstone County
StateMontana
Coordinates45.95184, -108.11927
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 inspectionMarch 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 rating46.1 US tons
Inventory rating27.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+5 approach)
Design loadHS 20
Structure length447 ft (136.2 m)
Longest span76 ft (23.2 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,611 (2023)
Projected traffic2,741 by 2043
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 94 over Rr-Highline Canal RD built?

It was built in 1968, making it 57 years old in 2025.

What condition is I 94 over Rr-Highline Canal RD 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 March 2024.

How much traffic does I 94 over Rr-Highline Canal RD carry?

About 2,611 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is I 94 over Rr-Highline Canal RD?

The structure is 447 ft (136.2 m) long with a longest span of 76 ft (23.2 m) and a deck 41 ft wide.

Who owns I 94 over Rr-Highline Canal RD?

It is owned by the State Highway Agency.