US Bridges

US 93 Alternate over Foys Lake Road

Good

Flathead County, Montana · 1 Mile W Kalispell · Structure no. 000000202008017

Built
2021
4 years old
Condition
Good
inspected January 2025
Type
Tee Beam
Prestressed Concrete
Length
98 ft
1 main span
Daily traffic
19,966
2023 count
Owner
State
State Highway Agency

About this bridge

US 93 Alternate over Foys Lake Road is a prestressed concrete tee beam carrying US 93 Alternate over Foys Lake Road in Flathead County, Montana. It was built in 2021, so it is 4 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 98 ft (29.8 m) long and 77 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS 93 Alternate
CrossesFoys Lake Road
Location1 Mile W Kalispell
RouteState Highway 109
StateMontana
Coordinates48.1868, -114.3335
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating55 US tons
Inventory rating42 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length98 ft (29.8 m)
Longest span96 ft (29.3 m)
Deck width77 ft (23.4 m)
Roadway width74 ft (22.6 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
CrossesHighway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 93 Alternate over Foys Lake Road built?

It was built in 2021, making it 4 years old in 2025.

What condition is US 93 Alternate over Foys Lake Road 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 January 2025.

How much traffic does US 93 Alternate over Foys Lake Road carry?

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

How long is US 93 Alternate over Foys Lake Road?

The structure is 98 ft (29.8 m) long with a longest span of 96 ft (29.3 m) and a deck 77 ft wide.

Who owns US 93 Alternate over Foys Lake Road?

It is owned by the State Highway Agency.