US Bridges

Ketowke CR Road over Sunday CR

Good

Flathead County, Montana · Sunday CR · Structure no. 011403000002091

Built
1998
27 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
40
Owner
Federal
U.S. Forest Service

About this bridge

Ketowke CR Road over Sunday CR is a prestressed concrete stringer/multi-beam or girder carrying Ketowke CR Road over Sunday CR in Flathead County, Montana. It was built in 1998, so it is 27 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 45 ft (13.7 m) long and 16 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesKetowke CR Road
CrossesSunday CR
LocationSunday CR
RouteFederal Lands Road 3734
CountyFlathead County
StateMontana
Coordinates48.62831, -114.75072
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 inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.2 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span44 ft (13.5 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (—)
Projected traffic60 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Ketowke CR Road over Sunday CR built?

It was built in 1998, making it 27 years old in 2025.

What condition is Ketowke CR Road over Sunday CR 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 2022.

How much traffic does Ketowke CR Road over Sunday CR carry?

About 40 vehicles per day (latest count).

How long is Ketowke CR Road over Sunday CR?

The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.5 m) and a deck 16 ft wide.

Who owns Ketowke CR Road over Sunday CR?

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