US Bridges

Inside North Fork over Akokala Creek

Good

Flathead County, Montana · 2 Mi. N. of Jct. Hwy. 2 & · Structure no. 1430014P0000000

Built
1983
42 years old
Condition
Good
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
50
2017 count
Owner
Federal
National Park Service

About this bridge

Inside North Fork over Akokala Creek is a prestressed concrete tee beam carrying Inside North Fork over Akokala Creek in Flathead County, Montana. It was built in 1983, so it is 42 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 50 vehicles a day, roughly 1% of them trucks, projected to reach 100 by 2037. The structure is 32 ft (9.8 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesInside North Fork
CrossesAkokala Creek
Location2 Mi. N. of Jct. Hwy. 2 &
RouteFederal Lands Road 15403
StateMontana
Coordinates48.78833, -114.28514
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 inspectionSeptember 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2017)
Projected traffic100 by 2037
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$101,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Inside North Fork over Akokala Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is Inside North Fork over Akokala 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 September 2023.

How much traffic does Inside North Fork over Akokala Creek carry?

About 50 vehicles per day (2017 count), of which roughly 1% are trucks.

How long is Inside North Fork over Akokala Creek?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 16 ft wide.

Who owns Inside North Fork over Akokala Creek?

It is owned by the National Park Service.