US Bridges

Bullhead RD over Birch Creek 022

FairPosted for load

Pondera County, Montana · 7M NW Valier · Structure no. L37064004+07001

Built
1950
75 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
92 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Bullhead RD over Birch Creek 022 is a steel stringer/multi-beam or girder carrying Bullhead RD over Birch Creek 022 in Pondera County, Montana. It was built in 1950, so it is 75 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 6 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 92 ft (28 m) long and 18 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesBullhead RD
CrossesBirch Creek 022
Location7M NW Valier
RouteCounty Highway 37064
StateMontana
Coordinates48.39121, -112.31964
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating37.1 US tons
Inventory rating27.4 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1 (+1 approach)
Design loadUnknown
Structure length92 ft (28 m)
Longest span66 ft (20.1 m)
Deck width18 ft (5.5 m)
Roadway width10 ft (3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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$149,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Bullhead RD over Birch Creek 022 built?

It was built in 1950, making it 75 years old in 2025.

What condition is Bullhead RD over Birch Creek 022 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 Bullhead RD over Birch Creek 022 carry?

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

How long is Bullhead RD over Birch Creek 022?

The structure is 92 ft (28 m) long with a longest span of 66 ft (20.1 m) and a deck 18 ft wide.

Who owns Bullhead RD over Birch Creek 022?

It is owned by the County Highway Agency.