US Bridges

NFSR over Cat Creek

Good

Lake County, Montana · Condon Area · Structure no. 011001000010926

Built
2008
17 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
40
2018 count
Owner
Federal
U.S. Forest Service

About this bridge

NFSR over Cat Creek is a prestressed concrete stringer/multi-beam or girder carrying NFSR over Cat Creek in Lake County, Montana. It was built in 2008, so it is 17 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 8 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 43 ft (13.1 m) long and 17 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesNFSR
CrossesCat Creek
LocationCondon Area
RouteFederal Lands Road 901
StateMontana
Coordinates47.61983, -113.70596
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.
Substructure8 Very GoodNo problems noted.
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 alignment8: Equal to present desirable criteria
Operating rating32.5 US tons
Inventory rating25 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span41 ft (12.5 m)
Deck width17 ft (5.3 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 Cat Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is NFSR over Cat 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 Cat Creek carry?

About 40 vehicles per day (2018 count).

How long is NFSR over Cat Creek?

The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.5 m) and a deck 17 ft wide.

Who owns NFSR over Cat Creek?

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