US 30 over Thomas Fork Creek
Bear Lake County, Idaho · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 30 over Thomas Fork Creek in Bear Lake County, Idaho, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1964, making it 61 years old at the 2025 inventory.
- It carries about 1,200 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 20 of the 34 inventoried bridges in Bear Lake County rated fair (58.8%); 0 (0.0%) 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 August 2023, on a 24-month routine inspection cycle.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (42.21342, -111.06986)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Concrete stringer or multi-beam girder |
| Length | about 58 ft |
| Location | 1.2 W. Ida-wyo Line |
| NBI structure number | 000000000013750 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Idaho department of transportation.
Busiest bridges in Bear Lake County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 89 over UPRR;12TH St.;montpelier | 1971 | 4,800 | Fair |
| US 89 over Bear River | 1973 | 3,500 | Good |
| US 30 over Georgetown Creek | 2016 | 3,400 | Good |
| US 89 over Ovid Creek | 2014 | 3,100 | Good |
| US 89 over Bear Lake Canal | 1973 | 3,100 | Fair |
| US 89 over Ovid Creek | 2019 | 2,000 | Good |
All bridges nearby: Bear Lake County, ID bridge conditions · every bridge in Bear Lake County · Idaho bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.