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Interstate 805 over Telegraph Canyon Drain

San Diego County, California · rated Poor in the 2025 National Bridge Inventory

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

Interstate 805 over Telegraph Canyon Drain in San Diego County, California, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 4 (poor condition) on the 0-9 scale.
It was built in 1971, making it 54 years old at the 2025 inventory.
It carries about 250,000 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 39 of the 1,632 inventoried bridges in San Diego County rated poor (2.4%); 39 (2.4%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings

Component	Rating (2025)	FHWA scale meaning
Culvert	4	Poor condition


Structure	Continuous concrete culvert
Length	about 26 ft
Location	11-sd-805-6.12-chv
NBI structure number	57 0865
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Interstate 15 over Mira Mesa Blvd	1977	283,000	Fair
Interstate 805 over Bonita Road	1975	272,000	Fair
Interstate 805 over Telegraph Canyon Road	1971	254,000	Good
Interstate 5 over San Elijo Lagoon	2022	247,000	Good
Interstate 5 over Carmel Valley Rd	1964	245,000	Good
Interstate 5 over San Dieguito River	1964	244,000	Fair