US Bridges

I 94 over Graveyard Creek

Fair

Rosebud County, Montana · 1M E Hathaway · Structure no. I00094118+07362

Built
1977
48 years old, rebuilt 1980
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
2,636
2023 count
Owner
State
State Highway Agency

About this bridge

I 94 over Graveyard Creek is a prestressed concrete stringer/multi-beam or girder carrying I 94 over Graveyard Creek in Rosebud County, Montana. It was built in 1977 and reconstructed in 1980, so it is 48 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 76 ft (23.3 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 94
CrossesGraveyard Creek
Location1M E Hathaway
RouteInterstate 94
CountyRosebud County
StateMontana
Coordinates46.28012, -106.17952
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length76 ft (23.3 m)
Longest span75 ft (22.9 m)
Deck width44 ft (13.5 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
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 Graveyard Creek built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 1980.

What condition is I 94 over Graveyard 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 June 2023.

How much traffic does I 94 over Graveyard Creek carry?

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

How long is I 94 over Graveyard Creek?

The structure is 76 ft (23.3 m) long with a longest span of 75 ft (22.9 m) and a deck 44 ft wide.

Who owns I 94 over Graveyard Creek?

It is owned by the State Highway Agency.