Low clearance bridges in Humboldt County, California

13 spots where an interstate or US highway in Humboldt County has less than 16 ft of clearance, lowest first. The lowest is 14 ft 5 in on US-101, 01-HUM-101-R11.50. 2 are under 15 ft.

Posted signs and your permit come first. These are the clearances California reported to the federal National Bridge Inventory in 2025. Repaving, snow and new work can lower them.

14 ft 5 in under Redwood Drive · US-101 14 ft 9 in under 6th Street · US-101 15 ft 0 in under Salmon Creek Road · US-101 15 ft 1 in under Humboldt Hill Road · US-101 15 ft 1 in under Loleta Drive · US-101 15 ft 1 in under Alderpoint Road · US-101 15 ft 3 in over Eel River · US-101 15 ft 3 in under Seventh Street · US-101 15 ft 5 in under Twelfth Street · US-101 15 ft 5 in under Hookton Road · US-101 15 ft 7 in under State Route 254 · US-101 15 ft 7 in under State Route 299 · US-101 15 ft 9 in under Crannell Road · US-101

Clearance	Where	Highway
14 ft 5 in	Under Redwood Drive · 01-HUM-101-R11.50 · Map	US-101
14 ft 9 in	Under 6th Street · 01-HUM-101-98.36 · Map	US-101
15 ft 0 in	Under Salmon Creek Road · 01-HUM-101-25.01 · Map	US-101
15 ft 1 in	Under Humboldt Hill Road · 01-HUM-101-73.72 · Map	US-101
15 ft 1 in	Under Loleta Drive · 01-HUM-101-65.95 · Map	US-101
15 ft 1 in	Under Alderpoint Road · 01-HUM-101-R11.77 · Map	US-101
15 ft 3 in	Over Eel River · 01-HUM-101-M53.91-RDEL · Map	US-101
15 ft 3 in	Under Seventh Street · 01-HUM-101-86.10-ARC · Map	US-101
15 ft 5 in	Under Twelfth Street · 01-HUM-101-60.49 · Map	US-101
15 ft 5 in	Under Hookton Road · 01-HUM-101-68.21 · Map	US-101
15 ft 7 in	Under State Route 254 · 01-HUM-254-19.94 · Map	US-101
15 ft 7 in	Under State Route 299 · 01-HUM-299-0.01-ARC · Map	US-101
15 ft 9 in	Under Crannell Road · 01-HUM-101-R97.02 · Map	US-101