US Bridges

Midale RD over Beaver Creek 046

Fair

Phillips County, Montana · 35M S Malta · Structure no. L36203013+04001

Built
1972
53 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
80 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Midale RD over Beaver Creek 046 is a steel stringer/multi-beam or girder carrying Midale RD over Beaver Creek 046 in Phillips County, Montana. It was built in 1972, so it is 53 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 80 ft (24.5 m) long and 20 ft wide. If it were closed, the detour would be 57.2 mi (92 km).

CarriesMidale RD
CrossesBeaver Creek 046
Location35M S Malta
RouteCounty Highway 36207
StateMontana
Coordinates47.92653, -108.10933
Functional classRural Minor Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionApril 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating31 US tons
Inventory rating23 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans2
Design loadUnknown
Structure length80 ft (24.5 m)
Longest span58 ft (17.7 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed57.2 mi (92 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 Midale RD over Beaver Creek 046 built?

It was built in 1972, making it 53 years old in 2025.

What condition is Midale RD over Beaver Creek 046 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 April 2024.

How much traffic does Midale RD over Beaver Creek 046 carry?

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

How long is Midale RD over Beaver Creek 046?

The structure is 80 ft (24.5 m) long with a longest span of 58 ft (17.7 m) and a deck 20 ft wide.

Who owns Midale RD over Beaver Creek 046?

It is owned by the County Highway Agency.