US Bridges

US 287 over O`dell Creek

Fair

Madison County, Montana · SE Ennis · Structure no. P00013048+01131

Built
2001
24 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
141 ft
3 main spans
Daily traffic
4,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 287 over O`dell Creek is a steel continuous stringer/multi-beam or girder carrying US 287 over O`dell Creek in Madison County, Montana. It was built in 2001, so it is 24 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 4,500 vehicles a day, roughly 6% of them trucks, projected to reach 4,748 by 2043. The structure is 141 ft (43 m) long and 42 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

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CarriesUS 287
CrossesO`dell Creek
LocationSE Ennis
RouteU.S. Route 287
CountyMadison County
StateMontana
Coordinates45.34243, -111.71495
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating70 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length141 ft (43 m)
Longest span59 ft (18 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,500 (2023)
Projected traffic4,748 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 O`dell Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is US 287 over O`dell 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 2023.

How much traffic does US 287 over O`dell Creek carry?

About 4,500 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is US 287 over O`dell Creek?

The structure is 141 ft (43 m) long with a longest span of 59 ft (18 m) and a deck 42 ft wide.

Who owns US 287 over O`dell Creek?

It is owned by the State Highway Agency.