US Bridges

US 2 over Lake Creek

Fair

Lincoln County, Montana · 1M SE Troy · Structure no. P00001015+03251

Built
1989
36 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
175 ft
3 main spans
Daily traffic
3,377
2023 count
Owner
State
State Highway Agency

About this bridge

US 2 over Lake Creek is a steel continuous stringer/multi-beam or girder carrying US 2 over Lake Creek in Lincoln County, Montana. It was built in 1989, so it is 36 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 3,377 vehicles a day, roughly 4% of them trucks, projected to reach 3,546 by 2043. The structure is 175 ft (53.3 m) long and 42 ft wide. If it were closed, the detour would be 65.2 mi (105 km).

CarriesUS 2
CrossesLake Creek
Location1M SE Troy
RouteU.S. Route 2
StateMontana
Coordinates48.44926, -115.87916
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length175 ft (53.3 m)
Longest span65 ft (19.8 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,377 (2023)
Projected traffic3,546 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed65.2 mi (105 km)
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 US 2 over Lake Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is US 2 over Lake 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 2024.

How much traffic does US 2 over Lake Creek carry?

About 3,377 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US 2 over Lake Creek?

The structure is 175 ft (53.3 m) long with a longest span of 65 ft (19.8 m) and a deck 42 ft wide.

Who owns US 2 over Lake Creek?

It is owned by the State Highway Agency.