US Bridges

Graves Creek Road over Tuchuck Creek

Fair

Flathead County, Montana · 8.8 MI West North Fork RD · Structure no. 011007000000078

Built
1953
72 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
26 ft
1 main span
Daily traffic
10
1990 count
Owner
Federal
U.S. Forest Service

About this bridge

Graves Creek Road over Tuchuck Creek is a wood or timber stringer/multi-beam or girder carrying Graves Creek Road over Tuchuck Creek in Flathead County, Montana. It was built in 1953, so it is 72 years old, older 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 6 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 10 vehicles a day, projected to reach 15 by 2045. The structure is 26 ft (7.9 m) long and 15 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesGraves Creek Road
CrossesTuchuck Creek
Location8.8 MI West North Fork RD
RouteFederal Lands Road 114
StateMontana
Coordinates48.92396, -114.59944
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating33.2 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 20
Structure length26 ft (7.9 m)
Longest span25 ft (7.6 m)
Deck width15 ft (4.6 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1990)
Projected traffic15 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 Graves Creek Road over Tuchuck Creek built?

It was built in 1953, making it 72 years old in 2025.

What condition is Graves Creek Road over Tuchuck Creek 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 August 2023.

How much traffic does Graves Creek Road over Tuchuck Creek carry?

About 10 vehicles per day (1990 count).

How long is Graves Creek Road over Tuchuck Creek?

The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 15 ft wide.

Who owns Graves Creek Road over Tuchuck Creek?

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