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Mill Creek Rd over Scott River

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

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

Mill Creek Rd over Scott River in Siskiyou 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 1985, making it 40 years old at the 2025 inventory.
It carries about 37 vehicles a day (traffic count year 2011).
Its listed owner is the county highway agency.
It is one of 170 of the 425 inventoried bridges in Siskiyou County rated good (40.0%); 25 (5.9%) 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


Structure	Continuous prestressed concrete multiple box beam
Length	about 287 ft
Location	E of Scott River Rd
NBI structure number	02C0051
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Interstate 5 SB over UP RR & Amtrak	1964	20,000	Fair
Interstate 5 NB over UP RR & Amtrak	1964	20,000	Fair
Interstate 5 over Mott Road	1976	20,000	Good
Interstate 5 over Mott Road	1976	20,000	Fair
Interstate 5 over Dunsmuir Ave	1976	19,200	Good
Interstate 5 over Sacramento UP RR Amtrak	1955	18,000	Good