San Bernardino County designates specific truck routes through Fontana, Ontario, Bloomington, and Mira Loma warehouse corridors to keep heavy freight off residential streets. Operating outside designated routes risks weight-violation citations and impoundment.
Cajon Pass and Interstate 15 form the primary freight corridor between Southern California ports and the rest of the country. The Inland Empire hosts hundreds of millions of square feet of warehouse space. The county and incorporated cities designate truck routes to channel heavy commercial vehicles onto arterials with adequate pavement design and away from schools and residential zones. California Vehicle Code 35400 series limits maximum lengths and weights. Local good-neighbor policies often require trucks to enter from designated freeway off-ramps and prohibit residential street idling between 10 p.m. and 6 a.m.
Off-route truck operation triggers Vehicle Code citations, typical fines from 250 dollars upward, and may trigger administrative penalties from city or county code enforcement and weighmaster sanctions.
See how Fontana's freight loading policy rules stack up against other locations.
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