US Bridges

I 94 over Sweeney Creek-Co RD

Fair

Rosebud County, Montana · 7M E Rosebud · Structure no. I00094111+05931

Built
1970
55 years old, rebuilt 2010
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
217 ft
4 main spans
Daily traffic
2,636
2023 count
Owner
State
State Highway Agency

About this bridge

I 94 over Sweeney Creek-Co RD is a prestressed concrete stringer/multi-beam or girder carrying I 94 over Sweeney Creek-Co RD in Rosebud County, Montana. It was built in 1970 and reconstructed in 2010, 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 217 ft (66 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 94
CrossesSweeney Creek-Co RD
Location7M E Rosebud
RouteInterstate 94
CountyRosebud County
StateMontana
Coordinates46.26742, -106.32395
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length217 ft (66 m)
Longest span65 ft (19.8 m)
Deck width45 ft (13.7 m)
Roadway width41 ft (12.6 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
CrossesHighway and waterway
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 Sweeney Creek-Co RD built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2010.

What condition is I 94 over Sweeney Creek-Co 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 June 2023.

How much traffic does I 94 over Sweeney Creek-Co RD carry?

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

How long is I 94 over Sweeney Creek-Co RD?

The structure is 217 ft (66 m) long with a longest span of 65 ft (19.8 m) and a deck 45 ft wide.

Who owns I 94 over Sweeney Creek-Co RD?

It is owned by the State Highway Agency.