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South Fork Road over South Fork Smith River

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

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

South Fork Road over South Fork Smith River in Del Norte 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 1981, making it 44 years old at the 2025 inventory.
It carries about 334 vehicles a day (traffic count year 2000).
Its listed owner is the county highway agency.
It is one of 46 of the 97 inventoried bridges in Del Norte County rated good (47.4%); 9 (9.3%) 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 concrete multiple box beam
Length	about 445 ft
Location	6.5 Mi SE Jct Rte 199
NBI structure number	01C0038
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
U.S. Highway 101 over Elk Creek	1944	21,500	Good
U.S. Highway 101 over Gilbert Creek	1953	7,300	Good
U.S. Highway 101 over Rowdy Creek	1951	7,250	Good
U.S. Highway 101 over Dominie Creek	2021	7,250	Good
U.S. Highway 101 over Smith Riv South Bank Rd	2023	7,200	Good
U.S. Highway 101 over Smith River Overflow	1955	6,700	Good