US Bridges

Somers Stage RD over Ashley Creek 002

Good

Flathead County, Montana · 4M SE Kalispell · Structure no. L15118002+05001

Built
2004
21 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Somers Stage RD over Ashley Creek 002 is a prestressed concrete tee beam carrying Somers Stage RD over Ashley Creek 002 in Flathead County, Montana. It was built in 2004, so it is 21 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 50 ft (15.2 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSomers Stage RD
CrossesAshley Creek 002
Location4M SE Kalispell
RouteCounty Highway 15118
StateMontana
Coordinates48.13543, -114.24492
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41 US tons
Inventory rating32 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span49 ft (14.8 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 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 closed3.7 mi (6 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 Somers Stage RD over Ashley Creek 002 built?

It was built in 2004, making it 21 years old in 2025.

What condition is Somers Stage RD over Ashley Creek 002 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does Somers Stage RD over Ashley Creek 002 carry?

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

How long is Somers Stage RD over Ashley Creek 002?

The structure is 50 ft (15.2 m) long with a longest span of 49 ft (14.8 m) and a deck 30 ft wide.

Who owns Somers Stage RD over Ashley Creek 002?

It is owned by the County Highway Agency.