US Bridges

Little Wolf CR RD over Wolf Creek 146

Good

Lewis and Clark County, Montana · 6M NW Wolf Creek · Structure no. L25220001+09001

Built
2007
18 years old
Condition
Good
inspected September 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
28 ft
1 main span
Daily traffic
237
2023 count
Owner
County
County Highway Agency

About this bridge

Little Wolf CR RD over Wolf Creek 146 is a aluminum, wrought iron, or cast iron culvert carrying Little Wolf CR RD over Wolf Creek 146 in Lewis and Clark County, Montana. It was built in 2007, so it is 18 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 237 vehicles a day, roughly 3% of them trucks, projected to reach 256 by 2043. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLittle Wolf CR RD
CrossesWolf Creek 146
Location6M NW Wolf Creek
RouteCounty Highway 25220
StateMontana
Coordinates47.03119, -112.16148
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.7 US tons
Inventory rating35.1 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic237 (2023)
Projected traffic256 by 2043
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Little Wolf CR RD over Wolf Creek 146 built?

It was built in 2007, making it 18 years old in 2025.

What condition is Little Wolf CR RD over Wolf Creek 146 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 September 2023.

How much traffic does Little Wolf CR RD over Wolf Creek 146 carry?

About 237 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Little Wolf CR RD over Wolf Creek 146?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m).

Who owns Little Wolf CR RD over Wolf Creek 146?

It is owned by the County Highway Agency.