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Bridge conditions in San Diego County, California

1,632 inventoried bridges · 39 rated poor · 2025 National Bridge Inventory

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

39 of the 1,632 bridges the federal inventory lists in San Diego County are rated poor; the rest split 869 good and 724 fair.

39 of the 1,632 bridges in San Diego County, California, are rated in poor condition (2.4%) in the 2025 National Bridge Inventory, as of August 20, 2026.
869 bridges (53.2%) are rated good and 724 (44.4%) fair.
The median San Diego County bridge was built in 1974.
The busiest poor-rated bridge is Interstate 805 over Telegraph Canyon Drain (built 1971), carrying about 250,000 vehicles a day.

Good 53.2% · Fair 44.4% · Poor 2.4% of 1,632 bridges

Bridges rated poor

Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.

Bridge	Built	Vehicles/day	Condition
Interstate 805 over Telegraph Canyon Drain	1971	250,000	Poor
Interstate 5 over Rte 163 Connectors	1961	199,000	Poor
Interstate 5 over De Anza Off-ramp	1954	101,500	Poor
Interstate 5 over Batiquitos Lagoon	1965	98,500	Poor
Interstate 5 over Batiquitos Lagoon	1965	98,500	Poor
Interstate 5 SB over Nctd BNSF & Amtrak Scrra	1967	96,000	Poor
Interstate 5 NB over San Luis Rey River	1970	78,500	Poor
E&w54-n805 Connect over Euclid Avenue	1974	62,000	Poor
State Route 94 EB over Bancroft Drive	1966	51,000	Poor
State Route 52 EB over Mast Bl San Diego River	1993	42,000	Poor
Sunset Cliffs Blvd over San Diego River	1951	40,000	Poor
Grand Ave over Rose Canyon Creek	1956	39,700	Poor
Palomar Street over Interstate 5	1973	31,977	Poor
Clairemont Dr over I 5 BNSF Amtrak Morena	1969	30,500	Poor
El Cajon Blvd over Spring St Sdiv RR Lrt	1962	25,212	Poor
Coast Highway over Loma Alta Creek	2003	22,100	Poor
Camino Del Mar over San Elijo Lagoon	1934	20,297	Poor
Washington Ave over Reidy Creek	1966	19,600	Poor
Main St over Chollas Creek	1937	18,545	Poor
Wire Mountain Rd over Interstate 5	1967	17,900	Poor
Stuart Mesa Road over Santa Margarita River	1960	15,000	Poor
Citrus Ave over Escondido Creek	1971	14,600	Poor
Camino Del Mar over San Dieguito River	1932	14,027	Poor
Quince Street over Escondido Creek	1965	12,700	Poor
N. Coast Highway over San Luis Rey River	1929	12,000	Poor
Wabash Blvd (SR15) over Main Street	1954	11,447	Poor
Dairy Mart Road over Mesa Creek	1978	9,991	Poor
Brooks St over Route 5	1970	9,800	Poor
Murray Drive over Mtdb Lrt & Sdiv RR	1988	8,500	Poor
W Bernardo Dr over Green Valley Creek	1983	7,200	Poor
State Route 94 over Cottonwood Creek	1954	6,900	Poor
Pacific St. over Loma Alta Creek	1985	4,320	Poor
Grove Street over State Route 94	1957	2,040	Poor
Levante Street over Encinitas Creek	2000	1,986	Poor
Sycamore Dr over Twin Oaks Valley Creek	1960	1,387	Poor
17TH Street over E St-s5 on Ramp	1928	500	Poor
Gunpowder Pt Dr over Sweetwater Marsh	1984	250	Poor
Gunpowder Pt Dr over Sweetwater Marsh	1984	250	Poor
Pacific Terrace over Cassidy Street	1927	1	Poor

Busiest bridges in the county

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 805 over Telegraph Canyon Drain	1971	250,000	Poor
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
Interstate 5 over Via De La Valle	1964	244,000	Good
Interstate 15 over San Diego River	1960	244,000	Fair
Interstate 15 over Rancho Bernardo Rd	1966	243,000	Good

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

Every bridge in San Diego County → - all 1,632, busiest first, each with its own condition record.

All of California: California bridge conditions by county · every download on the data page.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.