US Bridges

US287 over Beaver Creek

Fair

Broadwater County, Montana · 1 M NW Winston · Structure no. 000000202308064

Built
1992
33 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
6,930
2023 count
Owner
State
State Highway Agency

About this bridge

US287 over Beaver Creek is a concrete culvert carrying US287 over Beaver Creek in Broadwater County, Montana. It was built in 1992, so it is 33 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 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 6,930 vehicles a day, roughly 4% of them trucks, projected to reach 7,588 by 2043. The structure is 20 ft (6.1 m) long.

CarriesUS287
CrossesBeaver Creek
Location1 M NW Winston
RouteU.S. Route 287
StateMontana
Coordinates46.48788, -111.67175
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation*: *
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating—
Inventory rating—

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length20 ft (6.1 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,930 (2023)
Projected traffic7,588 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US287 over Beaver Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is US287 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 March 2023.

How much traffic does US287 over Beaver Creek carry?

About 6,930 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US287 over Beaver Creek?

The structure is 20 ft (6.1 m) long with a longest span of 8 ft (2.4 m).

Who owns US287 over Beaver Creek?

It is owned by the State Highway Agency.