US Bridges

US 287 over Usrs Canal

Good

Teton County, Montana · 8M NE Augusta · Structure no. P00009046+07411

Built
2005
20 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
110 ft
1 main span
Daily traffic
591
2023 count
Owner
State
State Highway Agency

About this bridge

US 287 over Usrs Canal is a prestressed concrete stringer/multi-beam or girder carrying US 287 over Usrs Canal in Teton County, Montana. It was built in 2005, so it is 20 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 591 vehicles a day, roughly 5% of them trucks, projected to reach 621 by 2043. The structure is 110 ft (33.4 m) long and 39 ft wide. If it were closed, the detour would be 57.2 mi (92 km).

CarriesUS 287
CrossesUsrs Canal
Location8M NE Augusta
RouteU.S. Route 287
StateMontana
Coordinates47.59143, -112.32417
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating44 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length110 ft (33.4 m)
Longest span108 ft (33 m)
Deck width39 ft (11.8 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic591 (2023)
Projected traffic621 by 2043
Trucks5%
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

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 US 287 over Usrs Canal built?

It was built in 2005, making it 20 years old in 2025.

What condition is US 287 over Usrs Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does US 287 over Usrs Canal carry?

About 591 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 287 over Usrs Canal?

The structure is 110 ft (33.4 m) long with a longest span of 108 ft (33 m) and a deck 39 ft wide.

Who owns US 287 over Usrs Canal?

It is owned by the State Highway Agency.