Ranchita Canyon Rd over Ranchita Creek
San Luis Obispo County, California · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ranchita Canyon Rd over Ranchita Creek in San Luis Obispo County, California, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1997, making it 28 years old at the 2025 inventory.
- It carries about 655 vehicles a day (traffic count year 2018).
- Its listed owner is the county highway agency.
- It is one of 170 of the 402 inventoried bridges in San Luis Obispo County rated fair (42.3%); 22 (5.5%) are rated poor.
- 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 → (35.78151, -120.58949)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Concrete slab |
| Length | about 42 ft |
| Location | 2.9 Mi N Cross Cyn Rd |
| NBI structure number | 49C0419 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.
Busiest bridges in San Luis Obispo County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| U.S. Highway 101 over Stenner Creek | 1978 | 62,000 | Good |
| U.S. Highway 101 over Perfuma Creek | 1948 | 56,000 | Good |
| US Highway 101 NB over Santa Maria River | 1962 | 56,000 | Fair |
| U.S. Highway 101 over Brisco Rd | 1956 | 56,000 | Good |
| U.S. Highway 101 over Whitehorse Draw | 1952 | 54,000 | Good |
| US Highway 101 over St Rte 41 (@PM15.96) | 2010 | 53,000 | Good |
All bridges nearby: San Luis Obispo County, CA bridge conditions · every bridge in San Luis Obispo County · California bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.