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Hill Road over Mill Creek

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

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

Hill Road over Mill Creek in Mendocino County, California, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1925, making it 100 years old at the 2025 inventory.
It carries about 78 vehicles a day (traffic count year 2014).
Its listed owner is the county highway agency.
It is one of 27 of the 356 inventoried bridges in Mendocino County rated poor (7.6%); 27 (7.6%) 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

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

Bridge	Built	Vehicles/day	Condition
State Route 1 over Pudding Creek	1959	23,950	Good
State Route 001 over Noyo River & Harbor Dr	2005	23,950	Good
U.S. Highway 101 over Austin Creek	1964	20,900	Good
North State St over Forsythe Creek	1949	20,200	Fair
U.S. Highway 101 over Ncrra/nwp RR	1957	19,000	Fair
U.S. Highway 101 over Baker Creek	1971	19,000	Good