Caltrans Chain Controls R-1/R-2/R-3
R-1 chains required on all commercial vehicles; R-2 adds chain requirements on all axles; R-3 closes the pass except essential traffic.
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California Donner Pass (I-80) Winter Trucking Survival Manual
Covering Caltrans chain control levels (R-1, R-2, R-3), maximum speed restrictions, and truck parking cordons
Donner Summit Speed Limits
When controls are active, Caltrans posts reduced speed limits; CheckPoint breadcrumbs prove compliance timestamps for shipper audits.
Truck Parking Cordons
Kingvale and Nyack parking lots fill during storms; dispatch staggers departures using pass condition webhooks and driver SMS.
Reno to Sacramento Lane Planning
Alternate US-50 vs I-80 routing modeled for reefer and flatbed teams when Donner is R-3.
Schedule Review with Scott Elliott
15-minute live session on your lanes, ramps, and compliance workflows.