1-10 over Lower Thomas Creek
Lake County, Oregon · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 1-10 over Lower Thomas Creek in Lake County, Oregon, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1967, making it 58 years old at the 2025 inventory.
- It carries about 396 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 49 of the 95 inventoried bridges in Lake County rated fair (51.6%); 7 (7.4%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: deck 7 to 6, substructure 5 to 7.
- Its most recent inspection on record is dated July 2024, on a 24-month routine inspection cycle.
- 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 → (42.17871, -120.38434)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 56 ft |
| Location | 1.45 Mi West of Lakeview |
| NBI structure number | 37C0131-1000145 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | U: unknown foundation, not evaluated for scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Oregon department of transportation.
Busiest bridges in Lake County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Or 140 (hwy 020) over Goose Lake Swale | 2001 | 2,107 | Good |
| Or 140 (hwy 020)RW over Irrigation Canal | 2001 | 2,107 | Good |
| Or 140 (hwy 020) over Thomas Creek | 2001 | 2,107 | Good |
| Or 140 (hwy 020) over Thomas Creek | 2001 | 2,107 | Good |
| Or 140 (hwy 020) over Warner Canyon Creek | 2001 | 2,107 | Good |
| Or 140 (hwy 020) over Muddy Creek | 2004 | 1,314 | Good |
All bridges nearby: Lake County, OR bridge conditions · every bridge in Lake County · Oregon bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.