US Bridges

I 94 over Yellowstone River

Fair

Dawson County, Montana · N Glendive · Structure no. I00094214+08322

Built
1968
57 years old
Condition
Fair
inspected May 2023
Type
Girder and Floorbeam System
Steel Continuous
Length
2,014 ft
8 main spans
Daily traffic
2,109
2023 count
Owner
State
State Highway Agency

About this bridge

I 94 over Yellowstone River is a steel continuous girder and floorbeam system carrying I 94 over Yellowstone River in Dawson 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 2,109 vehicles a day, roughly 18% of them trucks, projected to reach 2,214 by 2043. The structure is 2,014 ft (613.8 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 94
CrossesYellowstone River
LocationN Glendive
RouteInterstate 94
CountyDawson County
StateMontana
Coordinates47.12305, -104.70758
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8 (+2 approach)
Design loadHS 20
Structure length2,014 ft (613.8 m)
Longest span270 ft (82.3 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,109 (2023)
Projected traffic2,214 by 2043
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5.9 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I 94 over Yellowstone River built?

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

What condition is I 94 over Yellowstone River 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 2023.

How much traffic does I 94 over Yellowstone River carry?

About 2,109 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I 94 over Yellowstone River?

The structure is 2,014 ft (613.8 m) long with a longest span of 270 ft (82.3 m) and a deck 33 ft wide.

Who owns I 94 over Yellowstone River?

It is owned by the State Highway Agency.