US Bridges

Whalebone DR over Ashley Creek

Good

Flathead County, Montana · 5M W Kalispell · Structure no. 000000000007029

Built
2015
10 years old
Condition
Good
inspected January 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
25 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Whalebone DR over Ashley Creek is a aluminum, wrought iron, or cast iron culvert carrying Whalebone DR over Ashley Creek in Flathead County, Montana. It was built in 2015, so it is 10 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 9 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 25 ft (7.7 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesWhalebone DR
CrossesAshley Creek
Location5M W Kalispell
RouteCounty Highway 15619
StateMontana
Coordinates48.18197, -114.41188
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert9 ExcellentNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating28 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20
Structure length25 ft (7.7 m)
Longest span25 ft (7.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 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 closed6.8 mi (11 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 Whalebone DR over Ashley Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is Whalebone DR 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 January 2024.

How much traffic does Whalebone DR over Ashley Creek carry?

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

How long is Whalebone DR over Ashley Creek?

The structure is 25 ft (7.7 m) long with a longest span of 25 ft (7.7 m).

Who owns Whalebone DR over Ashley Creek?

It is owned by the County Highway Agency.