US Bridges

Wyo 390 over Granite Creek

Fair

Teton County, Wyoming · Wilson-Teton Village · Structure no. LME

Built
2003
22 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
80 ft
1 main span
Daily traffic
4,944
2024 count
Owner
State
State Highway Agency

About this bridge

Wyo 390 over Granite Creek is a steel stringer/multi-beam or girder carrying Wyo 390 over Granite Creek in Teton County, Wyoming. It was built in 2003, so it is 22 years old, younger than the Wyoming average of 48.4 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 4,944 vehicles a day, roughly 1% of them trucks, projected to reach 6,922 by 2043. The structure is 80 ft (24.4 m) long and 55 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesWyo 390
CrossesGranite Creek
LocationWilson-Teton Village
RouteState Highway 390
StateWyoming
Coordinates43.54645, -110.82202
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length80 ft (24.4 m)
Longest span77 ft (23.6 m)
Deck width55 ft (16.9 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,944 (2024)
Projected traffic6,922 by 2043
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Wyo 390 over Granite Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is Wyo 390 over Granite 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 Wyo 390 over Granite Creek carry?

About 4,944 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Wyo 390 over Granite Creek?

The structure is 80 ft (24.4 m) long with a longest span of 77 ft (23.6 m) and a deck 55 ft wide.

Who owns Wyo 390 over Granite Creek?

It is owned by the State Highway Agency.