US Bridges

I 94 over Rosebud Creek

Fair

Rosebud County, Montana · 1M W Rosebud · Structure no. I00094104+02231

Built
1970
55 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
173 ft
3 main spans
Daily traffic
2,636
2023 count
Owner
State
State Highway Agency

About this bridge

I 94 over Rosebud Creek is a prestressed concrete stringer/multi-beam or girder carrying I 94 over Rosebud Creek in Rosebud County, Montana. It was built in 1970, so it is 55 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 2,636 vehicles a day, roughly 21% of them trucks, projected to reach 2,847 by 2043. The structure is 173 ft (52.7 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 94
CrossesRosebud Creek
Location1M W Rosebud
RouteInterstate 94
CountyRosebud County
StateMontana
Coordinates46.26697, -106.47667
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length173 ft (52.7 m)
Longest span71 ft (21.6 m)
Deck width47 ft (14.4 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,636 (2023)
Projected traffic2,847 by 2043
Trucks21%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 94 over Rosebud Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is I 94 over Rosebud Creek 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 July 2023.

How much traffic does I 94 over Rosebud Creek carry?

About 2,636 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is I 94 over Rosebud Creek?

The structure is 173 ft (52.7 m) long with a longest span of 71 ft (21.6 m) and a deck 47 ft wide.

Who owns I 94 over Rosebud Creek?

It is owned by the State Highway Agency.