TRUCKEE (CBS13) — A significant storm has dumped snow all across the Sierra on Monday – and made for some dangerous driving conditions.

All major Sierra thoroughfares are seeing chain controls, while some have been closed for parts of the day.

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Below are the current chain controls (as of 2:49 p.m.):

I-80 eastbound is R2 Kingvale to Truckee.
I-80 westbound is R2 Truckee to Eagle Lakes.
Trucks are Maximum.

SR-89 is R2 Woodfords to Picketts Junction.
R2 Picketts Junction to Tahoe City.
R1 Tahoe City to I-80.
R2 Truckee to Sierra County Line.
R1 Sierra County Line to the Plumas County Line.

SR-267 is R2 Truckee to Kings Beach.

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SR-28 is R2 Tahoe City to Lardin Way.
R1 Lardin Way to State Line.

SR-20 is closed due to heavy snow and down trees.

US-50 is R2 4 miles east of Placerville to Meyers.

SR-88 is R2 Pine Grove to Silver Lake.
R2 Kirkwood to Woodfords.

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Carson Spur is closed.