Old Alviso Milp Rd over Coyote Creek
Santa Clara County, California · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Old Alviso Milp Rd over Coyote 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 deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 1997, making it 28 years old at the 2025 inventory.
- It carries about 350 vehicles a day (traffic count year 2013).
- 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).
- Its class is unchanged from 2024 (good), but component ratings moved: superstructure 7 to 8.
- Its most recent inspection on record is dated December 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 → (37.42339, -121.92602)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 8 | Very good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous prestressed concrete multiple box beam |
| Length | about 270 ft |
| Location | 0.3 Mi E I-880 |
| NBI structure number | 37C0819 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 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.