US Bridges

Beaver Creek Road over Beaver Creek

Fair

Lewis and Clark County, Montana · Beaver Creek 3 · Structure no. 011202000003129

Built
2004
21 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
45 ft
1 main span
Daily traffic
50
2004 count
Owner
Federal
U.S. Forest Service

About this bridge

Beaver Creek Road over Beaver Creek is a wood or timber stringer/multi-beam or girder carrying Beaver Creek Road over Beaver Creek in Lewis and Clark County, Montana. It was built in 2004, so it is 21 years old, younger 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.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 45 ft (13.6 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

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CarriesBeaver Creek Road
CrossesBeaver Creek
LocationBeaver Creek 3
RouteFederal Lands Road 138
CountyLewis and Clark County
StateMontana
Coordinates46.85629, -111.70715
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.5 US tons
Inventory rating20.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 20
Structure length45 ft (13.6 m)
Longest span44 ft (13.3 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2004)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Beaver Creek Road over Beaver Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Beaver Creek Road over Beaver 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 August 2023.

How much traffic does Beaver Creek Road over Beaver Creek carry?

About 50 vehicles per day (2004 count).

How long is Beaver Creek Road over Beaver Creek?

The structure is 45 ft (13.6 m) long with a longest span of 44 ft (13.3 m) and a deck 16 ft wide.

Who owns Beaver Creek Road over Beaver Creek?

It is owned by the U.S. Forest Service.