Grand Loop Road over Bridge Bay Inlet
Teton County, Wyoming · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Grand Loop Road over Bridge Bay Inlet in Teton County, Wyoming, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- It was built in 1961, making it 64 years old at the 2025 inventory.
- It carries about 1,807 vehicles a day (traffic count year 2019).
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (44.53206, -110.435)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 2 | Critical condition |
| Superstructure | 5 | Fair condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 235 ft |
| Location | 2.0 Mi. South of Lake Jct |
| NBI structure number | 1570017P0000000 |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wyoming department of transportation.
All bridges nearby: Teton County, WY bridge conditions · Wyoming bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.