US Bridges

US 2 over Big Cherry Creek

Poor

Lincoln County, Montana · 3M SW Libby · Structure no. P00001035+02771

Built
1976
49 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
151 ft
2 main spans
Daily traffic
5,295
2023 count
Owner
State
State Highway Agency

About this bridge

US 2 over Big Cherry Creek is a prestressed concrete stringer/multi-beam or girder carrying US 2 over Big Cherry Creek in Lincoln County, Montana. It was built in 1976, so it is 49 years old, older than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 5,295 vehicles a day, roughly 3% of them trucks, projected to reach 5,560 by 2043. The structure is 151 ft (46 m) long and 82 ft wide. If it were closed, the detour would be 119.9 mi (193 km).

CarriesUS 2
CrossesBig Cherry Creek
Location3M SW Libby
RouteU.S. Route 2
StateMontana
Coordinates48.35303, -115.52614
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating24 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length151 ft (46 m)
Longest span75 ft (22.9 m)
Deck width82 ft (24.9 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,295 (2023)
Projected traffic5,560 by 2043
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed119.9 mi (193 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 Big Cherry Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is US 2 over Big Cherry Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does US 2 over Big Cherry Creek carry?

About 5,295 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is US 2 over Big Cherry Creek?

The structure is 151 ft (46 m) long with a longest span of 75 ft (22.9 m) and a deck 82 ft wide.

Who owns US 2 over Big Cherry Creek?

It is owned by the State Highway Agency.