No Data Entered over Crosses Twin Lakes
Mono County, California · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- No Data Entered over Crosses Twin Lakes in Mono County, California, 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 1960, making it 65 years old at the 2025 inventory.
- It carries about 50 vehicles a day.
- It is one of 18 of the 56 inventoried bridges in Mono County rated fair (32.1%); 3 (5.4%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It does not appear under this structure number in the 2024 inventory (a new or renumbered structure).
- Its most recent inspection on record is dated September 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 → (37.61553, -119.00843)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 60 ft |
| Location | No Data Entered |
| NBI structure number | 050452000003016 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.
Busiest bridges in Mono County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| U.S. Highway 395 over Crooked Creek | 1970 | 13,100 | Fair |
| US Highway 395 SB over State Route 203 | 1969 | 9,500 | Fair |
| US Highway 395 SB over Mammoth Creek | 1969 | 8,450 | Good |
| U.S. Highway 395 over Roadside Drainage Ditch | 1989 | 7,450 | Good |
| US Highway 395 NB over Mammoth Creek | 1969 | 7,000 | Good |
| U.S. Highway 395 over West Walker River | 1987 | 6,950 | Good |
All bridges nearby: Mono County, CA bridge conditions · every bridge in Mono County · California bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.