Rainbow Drive over Calabazas Creek
Santa Clara County, California · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Rainbow Drive over Calabazas Creek in Santa Clara County, California, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1992, making it 33 years old at the 2025 inventory.
- It carries about 6,000 vehicles a day (traffic count year 2004).
- Its listed owner is a city or municipal highway agency.
- It is one of 407 of the 966 inventoried bridges in Santa Clara County rated good (42.1%); 43 (4.5%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It was rated fair in the 2024 inventory and is now good (culvert 6 to 7).
- Its most recent inspection on record is dated March 2024, on a 48-month routine inspection cycle.
- 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 → (37.30087, -122.02678)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 7 | Good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 30 ft |
| Location | 100 M E/o S Blaney Ave |
| NBI structure number | 37C0404 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2024 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.
Busiest bridges in Santa Clara County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Interstate 280 over 10TH & 11TH Street | 1972 | 250,300 | Good |
| Interstate 280 over Coyote Creek | 1972 | 250,300 | Fair |
| Interstate 280 over Abandoned UP RR Row | 1972 | 250,300 | Good |
| Interstate 280 over San Tomas Expressway | 1964 | 203,000 | Fair |
| Interstate 280 over Lawrence Expwy & Creek | 1965 | 203,000 | Fair |
| Interstate 280 over Private Road | 1969 | 196,000 | Good |
All bridges nearby: Santa Clara County, CA bridge conditions · every bridge in Santa Clara County · California bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.