US Bridges

Willow RD over Little Blackfoot R 042

GoodPosted for load

Powell County, Montana · E Elliston · Structure no. 000000202404045

Built
2023
2 years old
Condition
Good
inspected March 2024
Type
Tee Beam
Prestressed Concrete
Length
63 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Willow RD over Little Blackfoot R 042 is a prestressed concrete tee beam carrying Willow RD over Little Blackfoot R 042 in Powell County, Montana. It was built in 2023, so it is 2 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. 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 63 ft (19.2 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesWillow RD
CrossesLittle Blackfoot R 042
LocationE Elliston
RouteCounty Highway 39198
StateMontana
Coordinates46.55929, -112.4124
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.6 US tons
Inventory rating36.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length63 ft (19.2 m)
Longest span60 ft (18.3 m)
Deck width18 ft (5.6 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionOne-lane bridge for two-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Willow RD over Little Blackfoot R 042 built?

It was built in 2023, making it 2 years old in 2025.

What condition is Willow RD over Little Blackfoot R 042 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.

How much traffic does Willow RD over Little Blackfoot R 042 carry?

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

How long is Willow RD over Little Blackfoot R 042?

The structure is 63 ft (19.2 m) long with a longest span of 60 ft (18.3 m) and a deck 18 ft wide.

Who owns Willow RD over Little Blackfoot R 042?

It is owned by the County Highway Agency.