Cathedral Canyon over Whitewater River
Riverside County, California · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Cathedral Canyon over Whitewater River in Riverside County, California, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2024, making it 1 years old at the 2025 inventory.
- It carries about 1,000 vehicles a day (traffic count year 2024).
- Its listed owner is a city or municipal highway agency.
- It is one of 640 of the 1,120 inventoried bridges in Riverside County rated good (57.1%); 18 (1.6%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (33.7896, -116.46672)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Continuous concrete multiple box beam |
| Length | about 599 ft |
| Location | 0.6 M N/o Route 111 |
| NBI structure number | 56C0663 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.
Busiest bridges in Riverside County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| State Route 91 over BNSF Ry Amtrak Metrolink | 1970 | 270,000 | Fair |
| State Route 91 over Serfas Drive | 1970 | 269,000 | Good |
| Route 91 over Buena Vista Avenue | 1961 | 268,000 | Fair |
| State Route 91 over E91-n71 Connctr (future) | 1970 | 267,000 | Good |
| State Route 91 over Coal Canyon | 1970 | 264,000 | Good |
| State Route 91 over State Route 71 | 1970 | 264,000 | Good |
All bridges nearby: Riverside County, CA bridge conditions · every bridge in Riverside County · California bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.