US Bridges

Snow Shoe CR RD over Little Blackfoot R 017

Good

Powell County, Montana · 3M E Avon · Structure no. L39012000+02001

Built
2001
24 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
40 ft
1 main span
Daily traffic
10
2023 count
Owner
County
County Highway Agency

About this bridge

Snow Shoe CR RD over Little Blackfoot R 017 is a wood or timber stringer/multi-beam or girder carrying Snow Shoe CR RD over Little Blackfoot R 017 in Powell County, Montana. It was built in 2001, so it is 24 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.

It carries about 10 vehicles a day, projected to reach 11 by 2043. The structure is 40 ft (12.2 m) long and 26 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesSnow Shoe CR RD
CrossesLittle Blackfoot R 017
Location3M E Avon
RouteCounty Highway 39100
CountyPowell County
StateMontana
Coordinates46.58259, -112.53737
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.3 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)
Projected traffic11 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 Snow Shoe CR RD over Little Blackfoot R 017 built?

It was built in 2001, making it 24 years old in 2025.

What condition is Snow Shoe CR RD over Little Blackfoot R 017 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 October 2023.

How much traffic does Snow Shoe CR RD over Little Blackfoot R 017 carry?

About 10 vehicles per day (2023 count).

How long is Snow Shoe CR RD over Little Blackfoot R 017?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 26 ft wide.

Who owns Snow Shoe CR RD over Little Blackfoot R 017?

It is owned by the County Highway Agency.