US Bridges

1127: Dry Fork over Beauchamp Creek

Fair

Phillips County, Montana · 13 MI SE of US 191 · Structure no. 000000000L59208

Built
1972
53 years old, rebuilt 1986
Condition
Fair
inspected September 2024
Type
Girder and Floorbeam System
Wood or Timber
Length
62 ft
1 main span
Daily traffic
25
2022 count
Owner
Federal
Bureau of Land Management

About this bridge

1127: Dry Fork over Beauchamp Creek is a wood or timber girder and floorbeam system carrying 1127: Dry Fork over Beauchamp Creek in Phillips County, Montana. It was built in 1972 and reconstructed in 1986, 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 25 vehicles a day, projected to reach 35 by 2040. The structure is 62 ft (18.8 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries1127: Dry Fork
CrossesBeauchamp Creek
Location13 MI SE of US 191
RouteFederal Lands Road 0
CountyPhillips County
StateMontana
Coordinates47.79015, -108.24986
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length62 ft (18.8 m)
Longest span60 ft (18.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic35 by 2040
Trucks—
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Land Management
Maintained byBureau of Land Management
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 1127: Dry Fork over Beauchamp Creek built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1986.

What condition is 1127: Dry Fork over Beauchamp Creek 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 September 2024.

How much traffic does 1127: Dry Fork over Beauchamp Creek carry?

About 25 vehicles per day (2022 count).

How long is 1127: Dry Fork over Beauchamp Creek?

The structure is 62 ft (18.8 m) long with a longest span of 60 ft (18.3 m) and a deck 26 ft wide.

Who owns 1127: Dry Fork over Beauchamp Creek?

It is owned by the Bureau of Land Management.