US Bridges

US 26 over Buffalo Fork River

Good

Teton County, Wyoming · Moran JCT - Dubois · Structure no. LWC

Built
2007
18 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
345 ft
3 main spans
Daily traffic
1,618
2024 count
Owner
State
State Highway Agency

About this bridge

US 26 over Buffalo Fork River is a steel continuous stringer/multi-beam or girder carrying US 26 over Buffalo Fork River in Teton County, Wyoming. It was built in 2007, so it is 18 years old, younger than the Wyoming average of 48.4 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 1,618 vehicles a day, roughly 5% of them trucks, projected to reach 2,265 by 2043. The structure is 345 ft (105.2 m) long and 43 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUS 26
CrossesBuffalo Fork River
LocationMoran JCT - Dubois
RouteU.S. Route 26
StateWyoming
Coordinates43.83826, -110.44123
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating110.1 US tons
Inventory rating75 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length345 ft (105.2 m)
Longest span203 ft (61.9 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,618 (2024)
Projected traffic2,265 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 26 over Buffalo Fork River built?

It was built in 2007, making it 18 years old in 2025.

What condition is US 26 over Buffalo Fork 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 August 2023.

How much traffic does US 26 over Buffalo Fork River carry?

About 1,618 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is US 26 over Buffalo Fork River?

The structure is 345 ft (105.2 m) long with a longest span of 203 ft (61.9 m) and a deck 43 ft wide.

Who owns US 26 over Buffalo Fork River?

It is owned by the State Highway Agency.