Yel­low knife, Canada

Automobile - - Drives -

Six­teen inches of ice is the min­i­mum you’d want to drive on—though lo­cals some­times drive on less, not al­ways suc­cess­fully. At that level, the ice can safely sup­port large ve­hi­cles, ve­hi­cles with trail­ers, and mul­ti­ple ve­hi­cles pass­ing at once. More ice is needed to han­dle the con­stant abuse of a pub­lic high­way, how­ever, and when it comes to ice driv­ing schools, you’ll rarely be on less than 4 feet of so­lid­i­fied lake.

Still a bit creeped out by the thought of sink­ing to the frigid bot­tom? Just re­mem­ber, hear­ing the sharp pop of crack­ing ice is a good thing—it’s when the crack­ing stops that it’s time to get out and run. Why? Be­cause it means the piece you’re on has bro­ken free and is no longer sup­ported by the sur­round­ing ice. — Nel­son Ire­son AM

COLD REA­SON Yel­lowknife’s high­way de­part­ment uses am­phibi­ous ve­hi­cles pulling radar sleds to scan the thick­ness of the ice as win­ter comes on, as well as more old-school meth­ods.

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