US Bridges

Smith Lake RD over Ashley Creek 007

Fair

Flathead County, Montana · 10M W Kalispell · Structure no. L15627000+05001

Built
1988
37 years old
Condition
Fair
inspected November 2023
Type
Channel Beam
Prestressed Concrete
Length
151 ft
3 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Smith Lake RD over Ashley Creek 007 is a prestressed concrete channel beam carrying Smith Lake RD over Ashley Creek 007 in Flathead County, Montana. It was built in 1988, so it is 37 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 151 ft (46 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSmith Lake RD
CrossesAshley Creek 007
Location10M W Kalispell
RouteCounty Highway 15627
StateMontana
Coordinates48.10585, -114.45985
Functional classRural Minor Collector

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating26.1 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length151 ft (46 m)
Longest span60 ft (18.3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Smith Lake RD over Ashley Creek 007 built?

It was built in 1988, making it 37 years old in 2025.

What condition is Smith Lake RD over Ashley Creek 007 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 November 2023.

How much traffic does Smith Lake RD over Ashley Creek 007 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Smith Lake RD over Ashley Creek 007?

The structure is 151 ft (46 m) long with a longest span of 60 ft (18.3 m) and a deck 28 ft wide.

Who owns Smith Lake RD over Ashley Creek 007?

It is owned by the County Highway Agency.