US Bridges

Rosebud Creek RD over Rosebud CR Ovrflow 046

Fair

Rosebud County, Montana · 10M SE Colstrip · Structure no. L44200008+07001

Built
1980
45 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
37
2023 count
Owner
County
County Highway Agency

About this bridge

Rosebud Creek RD over Rosebud CR Ovrflow 046 is a steel stringer/multi-beam or girder carrying Rosebud Creek RD over Rosebud CR Ovrflow 046 in Rosebud County, Montana. It was built in 1980, so it is 45 years old, younger 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 5 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 37 vehicles a day, roughly 5% of them trucks, projected to reach 39 by 2043. The structure is 40 ft (12.2 m) long and 29 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesRosebud Creek RD
CrossesRosebud CR Ovrflow 046
Location10M SE Colstrip
RouteCounty Highway 44300
CountyRosebud County
StateMontana
Coordinates45.82978, -106.42136
Functional classRural Minor Collector

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
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 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
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37 (2023)
Projected traffic39 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Rosebud Creek RD over Rosebud CR Ovrflow 046 built?

It was built in 1980, making it 45 years old in 2025.

What condition is Rosebud Creek RD over Rosebud CR Ovrflow 046 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 2024.

How much traffic does Rosebud Creek RD over Rosebud CR Ovrflow 046 carry?

About 37 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Rosebud Creek RD over Rosebud CR Ovrflow 046?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 29 ft wide.

Who owns Rosebud Creek RD over Rosebud CR Ovrflow 046?

It is owned by the County Highway Agency.