US Bridges

US 2 over Cedar Creek

Fair

Lincoln County, Montana · 4M NW Libby · Structure no. P00001027+08701

Built
1989
36 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
3,226
2023 count
Owner
State
State Highway Agency

About this bridge

US 2 over Cedar Creek is a prestressed concrete stringer/multi-beam or girder carrying US 2 over Cedar 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 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 3,226 vehicles a day, roughly 4% of them trucks, projected to reach 3,387 by 2043. The structure is 52 ft (15.8 m) long and 42 ft wide. If it were closed, the detour would be 65.2 mi (105 km).

CarriesUS 2
CrossesCedar Creek
Location4M NW Libby
RouteU.S. Route 2
StateMontana
Coordinates48.43055, -115.62891
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating42 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span50 ft (15.2 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,226 (2023)
Projected traffic3,387 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 Cedar Creek built?

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

What condition is US 2 over Cedar 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 October 2024.

How much traffic does US 2 over Cedar Creek carry?

About 3,226 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US 2 over Cedar Creek?

The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.2 m) and a deck 42 ft wide.

Who owns US 2 over Cedar Creek?

It is owned by the State Highway Agency.