South Entrance Roa over Unnamed Creek
Teton County, Wyoming · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- South Entrance Roa over Unnamed Creek in Teton County, Wyoming, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1972, making it 53 years old at the 2025 inventory.
- It carries about 1,598 vehicles a day (traffic count year 2019).
- It is one of 15 of the 122 inventoried bridges in Teton County rated poor (12.3%); 15 (12.3%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated September 2024, on a 24-month routine inspection cycle.
- 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 → (44.40853, -110.57267)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 4 | 4 | Poor condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous concrete tee beam |
| Length | about 145 ft |
| Location | 0.5 Mi. South of West Thu |
| NBI structure number | 1570030P0000000 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 9: foundations on dry land well above flood elevations |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wyoming department of transportation.
Busiest bridges in Teton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 89 over Flat Creek | 1969 | 33,675 | Fair |
| Wyo 22 over Wildlife Crossing | 2023 | 18,401 | Good |
| Wyo 22 over Snake River | 2023 | 18,401 | Good |
| US 89 over Flat Creek | 1938 | 15,780 | Poor |
| Wyo 22 over Wildlife Crossing | 2023 | 12,046 | Fair |
| US 89 over Wildlife Crossing | 2017 | 11,949 | Good |
All bridges nearby: Teton County, WY bridge conditions · every bridge in Teton County · Wyoming bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.