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Seavey Rd over No Name Creek

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

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

Seavey Rd over No Name Creek in Sonoma 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 1960, making it 65 years old at the 2025 inventory.
It carries about 200 vehicles a day (traffic count year 2011).
Its listed owner is the county highway agency.
It is one of 32 of the 611 inventoried bridges in Sonoma County rated poor (5.2%); 32 (5.2%) 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	0.4 Mi W Spring Hill Rd
NBI structure number	20C0292
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
US Highway 101 over College Avenue	2009	136,500	Fair
U.S. Route 101 over Future Rainier Avenue	2022	103,000	Fair
US Highway 101 over 3RD St 4TH St & 5TH St	1968	96,000	Fair
US Highway 101 over Ninth Street	1968	96,000	Fair
U.S. Highway 101 over Santa Rosa Creek	2009	96,000	Fair
U.S. Highway 101 over Sixth Street	2009	96,000	Fair