US Bridges

Sunday CR Road over Sunday CR

Fair

Flathead County, Montana · Sunday CR · Structure no. 011403000000161

Built
1982
43 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
35 ft
1 main span
Daily traffic
40
Owner
Federal
U.S. Forest Service

About this bridge

Sunday CR Road over Sunday CR is a prestressed concrete stringer/multi-beam or girder carrying Sunday CR Road over Sunday CR in Flathead County, Montana. It was built in 1982, so it is 43 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 40 vehicles a day, projected to reach 60 by 2045. The structure is 35 ft (10.8 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

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CarriesSunday CR Road
CrossesSunday CR
LocationSunday CR
RouteFederal Lands Road 315
CountyFlathead County
StateMontana
Coordinates48.57257, -114.83306
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating39.2 US tons
Inventory rating21.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length35 ft (10.8 m)
Longest span35 ft (10.6 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 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 closed98.2 mi (158 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 Sunday CR Road over Sunday CR built?

It was built in 1982, making it 43 years old in 2025.

What condition is Sunday CR Road over Sunday CR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

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

About 40 vehicles per day (latest count).

How long is Sunday CR Road over Sunday CR?

The structure is 35 ft (10.8 m) long with a longest span of 35 ft (10.6 m) and a deck 16 ft wide.

Who owns Sunday CR Road over Sunday CR?

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