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Old Hwy 99W over North Fork Logan Creek

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

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

Old Hwy 99W over North Fork Logan Creek in Glenn County, California, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
It was built in 1914 and reconstructed in 1930, making it 111 years old at the 2025 inventory.
It carries about 460 vehicles a day (traffic count year 2015).
Its listed owner is the county highway agency.
It is one of 91 of the 240 inventoried bridges in Glenn County rated good (37.9%); 17 (7.1%) 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

Component	Rating (2025)	FHWA scale meaning
Culvert	7	Good condition


Structure	Continuous concrete culvert
Length	about 23 ft
Location	3.5 Mi N of Rd #68
NBI structure number	11C0199
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 over Glenn-colusa Drain Ditch	1966	26,000	Good
Interstate 5 over Logan Creek	1970	25,500	Good
Interstate 5 over North Fork Logan Creek	1970	25,500	Good
Interstate 5 SB over Central Irrigation Canal	1966	13,000	Good
Interstate 5 NB over Central Irrigation Canal	1966	13,000	Good
Interstate 5 SB over Cfnr Spur	1966	13,000	Good