US Bridges

Sand Creek RD over Cartersville Canal 030

FairPosted for load

Rosebud County, Montana · 9M NE Rosebud · Structure no. L44219000+08001

Built
1935
90 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Sand Creek RD over Cartersville Canal 030 is a steel stringer/multi-beam or girder carrying Sand Creek RD over Cartersville Canal 030 in Rosebud County, Montana. It was built in 1935, so it is 90 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 33 ft (10.1 m) long and 19 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSand Creek RD
CrossesCartersville Canal 030
Location9M NE Rosebud
RouteCounty Highway 44219
StateMontana
Coordinates46.31003, -106.36094
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating8 US tons
Inventory rating6 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span31 ft (9.4 m)
Deck width19 ft (5.7 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$39,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Sand Creek RD over Cartersville Canal 030 built?

It was built in 1935, making it 90 years old in 2025.

What condition is Sand Creek RD over Cartersville Canal 030 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 February 2024.

How much traffic does Sand Creek RD over Cartersville Canal 030 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Sand Creek RD over Cartersville Canal 030?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 19 ft wide.

Who owns Sand Creek RD over Cartersville Canal 030?

It is owned by the County Highway Agency.