US Bridges

NFSR #144 over West Fork Teton River

Good

Teton County, Montana · 1/2 MI So of W.F. Station · Structure no. 011501000000090

Built
1977
48 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
65
2003 count
Owner
Federal
U.S. Forest Service

About this bridge

NFSR #144 over West Fork Teton River is a prestressed concrete stringer/multi-beam or girder carrying NFSR #144 over West Fork Teton River in Teton County, Montana. It was built in 1977, so it is 48 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 65 vehicles a day, projected to reach 97 by 2045. The structure is 75 ft (22.9 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesNFSR #144
CrossesWest Fork Teton River
Location1/2 MI So of W.F. Station
RouteFederal Lands Road 144
StateMontana
Coordinates47.95775, -112.81019
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
Deck7 GoodSome minor problems.
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
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating41.4 US tons
Inventory rating30.3 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span73 ft (22.1 m)
Deck width16 ft (5 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2003)
Projected traffic97 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 NFSR #144 over West Fork Teton River built?

It was built in 1977, making it 48 years old in 2025.

What condition is NFSR #144 over West Fork Teton River 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 NFSR #144 over West Fork Teton River carry?

About 65 vehicles per day (2003 count).

How long is NFSR #144 over West Fork Teton River?

The structure is 75 ft (22.9 m) long with a longest span of 73 ft (22.1 m) and a deck 16 ft wide.

Who owns NFSR #144 over West Fork Teton River?

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