US Bridges

Snowline LN over Ashley Creek 168

Fair

Flathead County, Montana · 3M SE Kalispell · Structure no. L15122000+03001

Built
2003
22 years old
Condition
Fair
inspected November 2023
Type
Channel Beam
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Snowline LN over Ashley Creek 168 is a prestressed concrete channel beam carrying Snowline LN over Ashley Creek 168 in Flathead County, Montana. It was built in 2003, so it is 22 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 51 ft (15.4 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSnowline LN
CrossesAshley Creek 168
Location3M SE Kalispell
RouteCounty Highway 15122
CountyFlathead County
StateMontana
Coordinates48.14886, -114.28192
Functional classUrban Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating75 US tons
Inventory rating58 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length51 ft (15.4 m)
Longest span51 ft (15.4 m)
Deck width28 ft (8.4 m)
Roadway width27 ft (8.2 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 closed3.1 mi (5 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 Snowline LN over Ashley Creek 168 built?

It was built in 2003, making it 22 years old in 2025.

What condition is Snowline LN over Ashley Creek 168 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 Snowline LN over Ashley Creek 168 carry?

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

How long is Snowline LN over Ashley Creek 168?

The structure is 51 ft (15.4 m) long with a longest span of 51 ft (15.4 m) and a deck 28 ft wide.

Who owns Snowline LN over Ashley Creek 168?

It is owned by the County Highway Agency.