US Bridges

NFSR over Logan Creek

Good

Flathead County, Montana · Tally Lake Campground · Structure no. 011008000013113

Built
2011
14 years old
Condition
Good
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
102 ft
1 main span
Daily traffic
40
2018 count
Owner
Federal
U.S. Forest Service

About this bridge

NFSR over Logan Creek is a prestressed concrete tee beam carrying NFSR over Logan Creek in Flathead County, Montana. It was built in 2011, so it is 14 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 40 vehicles a day, projected to reach 60 by 2045. The structure is 102 ft (31.2 m) long and 16 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesNFSR
CrossesLogan Creek
LocationTally Lake Campground
RouteFederal Lands Road 2895
StateMontana
Coordinates48.4152, -114.58658
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33.2 US tons
Inventory rating25.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length102 ft (31.2 m)
Longest span100 ft (30.5 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2018)
Projected traffic60 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NFSR over Logan Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is NFSR over Logan 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 July 2024.

How much traffic does NFSR over Logan Creek carry?

About 40 vehicles per day (2018 count).

How long is NFSR over Logan Creek?

The structure is 102 ft (31.2 m) long with a longest span of 100 ft (30.5 m) and a deck 16 ft wide.

Who owns NFSR over Logan Creek?

It is owned by the U.S. Forest Service.