US Bridges

US 93 Bypass over Ashley Creek

Good

Flathead County, Montana · SW Kalispell · Structure no. P00109004+00281

Built
2010
15 years old, rebuilt 2016
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
110 ft
1 main span
Daily traffic
19,966
2023 count
Owner
State
State Highway Agency

About this bridge

US 93 Bypass over Ashley Creek is a prestressed concrete stringer/multi-beam or girder carrying US 93 Bypass over Ashley Creek in Flathead County, Montana. It was built in 2010 and reconstructed in 2016, so it is 15 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 19,966 vehicles a day, roughly 1% of them trucks, projected to reach 21,963 by 2043. The structure is 110 ft (33.4 m) long and 87 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesUS 93 Bypass
CrossesAshley Creek
LocationSW Kalispell
RouteU.S. Route 109
StateMontana
Coordinates48.19188, -114.33635
Functional classUrban Other Principal Arterial

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 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.6 US tons
Inventory rating34.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length110 ft (33.4 m)
Longest span108 ft (33 m)
Deck width87 ft (26.5 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,966 (2023)
Projected traffic21,963 by 2043
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 93 Bypass over Ashley Creek built?

It was built in 2010, making it 15 years old in 2025. It was reconstructed in 2016.

What condition is US 93 Bypass over Ashley Creek 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 October 2024.

How much traffic does US 93 Bypass over Ashley Creek carry?

About 19,966 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is US 93 Bypass over Ashley Creek?

The structure is 110 ft (33.4 m) long with a longest span of 108 ft (33 m) and a deck 87 ft wide.

Who owns US 93 Bypass over Ashley Creek?

It is owned by the State Highway Agency.