US Bridges

Forest Road over Hallowat Creek

Good

Flathead County, Montana · 8 MI West North Fork RD · Structure no. 011007000000053

Built
1956
69 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
31 ft
1 main span
Daily traffic
10
1990 count
Owner
Federal
U.S. Forest Service

About this bridge

Forest Road over Hallowat Creek is a wood or timber stringer/multi-beam or girder carrying Forest Road over Hallowat Creek in Flathead County, Montana. It was built in 1956, so it is 69 years old, older 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 10 vehicles a day, projected to reach 15 by 2045. The structure is 31 ft (9.3 m) long and 15 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesForest Road
CrossesHallowat Creek
Location8 MI West North Fork RD
RouteFederal Lands Road 316
StateMontana
Coordinates48.57389, -114.31669
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
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating28.2 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 20
Structure length31 ft (9.3 m)
Longest span30 ft (9 m)
Deck width15 ft (4.7 m)
Roadway width14 ft (4.3 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 Forest Road over Hallowat Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Forest Road over Hallowat 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 June 2024.

How much traffic does Forest Road over Hallowat Creek carry?

About 10 vehicles per day (1990 count).

How long is Forest Road over Hallowat Creek?

The structure is 31 ft (9.3 m) long with a longest span of 30 ft (9 m) and a deck 15 ft wide.

Who owns Forest Road over Hallowat Creek?

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