US Bridges

Forest Road over Graves Creek

Good

Flathead County, Montana · Graves Creek · Structure no. 011006000003041

Built
2002
23 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
81 ft
1 main span
Daily traffic
75
1989 count
Owner
Federal
U.S. Forest Service

About this bridge

Forest Road over Graves Creek is a steel stringer/multi-beam or girder carrying Forest Road over Graves Creek in Flathead County, Montana. It was built in 2002, so it is 23 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 75 vehicles a day, projected to reach 112 by 2045. The structure is 81 ft (24.8 m) long and 30 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesForest Road
CrossesGraves Creek
LocationGraves Creek
RouteFederal Lands Road 895
StateMontana
Coordinates48.12693, -113.80961
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
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo 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 geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.1 US tons
Inventory rating28.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length81 ft (24.8 m)
Longest span59 ft (18 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (1989)
Projected traffic112 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-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 Forest Road over Graves Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Forest Road over Graves 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 Forest Road over Graves Creek carry?

About 75 vehicles per day (1989 count).

How long is Forest Road over Graves Creek?

The structure is 81 ft (24.8 m) long with a longest span of 59 ft (18 m) and a deck 30 ft wide.

Who owns Forest Road over Graves Creek?

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