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Casa Loma Road over Llagas Creek

Santa Clara County, California · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Casa Loma Road over Llagas Creek in Santa Clara County, California, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1940, making it 85 years old at the 2025 inventory.
It carries about 180 vehicles a day (traffic count year 2004).
Its listed owner is the county 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.
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.

Component ratings

Source: FHWA National Bridge Inventory, 2025 data as reported by the California department of transportation.

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