US Bridges

Belle Creek RD over Little Powder River 011

Fair

Powder River County, Montana · 20M S Broadus · Structure no. L38402000+09001

Built
1970
55 years old
Condition
Fair
inspected September 2023
Type
Channel Beam
Prestressed Concrete
Length
62 ft
1 main span
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

Belle Creek RD over Little Powder River 011 is a prestressed concrete channel beam carrying Belle Creek RD over Little Powder River 011 in Powder River 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 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 50 vehicles a day, roughly 3% of them trucks, projected to reach 53 by 2043. The structure is 62 ft (18.9 m) long and 24 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesBelle Creek RD
CrossesLittle Powder River 011
Location20M S Broadus
RouteCounty Highway 38135
StateMontana
Coordinates45.19639, -105.31375
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating22.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length62 ft (18.9 m)
Longest span60 ft (18.3 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic53 by 2043
Trucks3%
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 Belle Creek RD over Little Powder River 011 built?

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

What condition is Belle Creek RD over Little Powder River 011 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 September 2023.

How much traffic does Belle Creek RD over Little Powder River 011 carry?

About 50 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Belle Creek RD over Little Powder River 011?

The structure is 62 ft (18.9 m) long with a longest span of 60 ft (18.3 m) and a deck 24 ft wide.

Who owns Belle Creek RD over Little Powder River 011?

It is owned by the County Highway Agency.